Units and Experiments


Below are all the WOW Unit Topics and a brief look at the WOW Experiments.  If you would like to see an experiment pdf/doc or an entire unit packet, please visit and fill out the contact us page here

Are you a Columbus City School teacher or principal interested in having WOW come to your school? If so, please contact us here for more details. 


Accordion Header
WOW Units


The WOW Programs always start with the Scientific Method Unit because the scientific method is the basis of all science. The information and experiences learned in this unit will help students with future units and experiments. 

Only one experiment is selected for this WOW visit as the experiment takes 30 minutes to an hour to complete. Some experiments can be abbreviated to do two during the visit like the Mystery Boxes and Spaghetti-Marshmallow Towers experiments. 

Photograph of WOW volunteer talking to first graders about aerodynamics and airplanes for one of our scientific method experiments.



When trying to solve a problem, we often use a form of experimentation, “guess and check”—unwittingly, we are using the scientific method! Here, students can improve the flight distance of an airplane using the scientific method. 




Photograph of second graders learning about the scientific method and working on building their clay boats.


Clay Boats

Groups of students will be challenged to make a boat out of clay that holds the most weight. Clay is denser than water, so a randomly-shaped lump of clay will sink. It is up to students to figure out how a boat works, and use their intuitive understanding of surface area and volume to make a boat that can float—and carry a load!



Photograph of Battelle employee/ WOW volunteers talking to 5th graders about mystery boxes and the scientific method.

Mystery Boxes

The scientific method is a structured way of solving scientific problems. Students will use the scientific method to describe the mystery item in each box. The objective is not to guess the contents of the box; instead, the goal is to make as detailed and accurate a list as possible of the box properties. 





Photograph of WOW student volunteers building a spaghetti-marshmallow tower

Spaghetti-Marshmallow Towers

Groups of students will be challenged to make the tallest tower out of raw, uncooked spaghetti and marshmallows. In this activity, students will explore structures and investigate building methods to make not only the tallest structure, but the strongest structure as well. Students will be able to rebuild and alter their designs to improve them while working with a team to create the best design. They will get an insight into the scientific method and real-life process of designing, testing, and redesigning their product just like architects and engineers.


For the second or third year a school is in WOW, the WOW Programs will actual begin with the Measurement Unit instead of the Scientific Method Unit. This unit is more math focused, but the tools learned here are helpful in data collection and analysis for science experiments.

Photograph of CAS employee/WOW volunteer teaching 4th graders about displacement and sinking objects by dropping golf balls into a beaker of water.

Measuring with Rulers/Crayons/Paperclips (K-3 grades: 15 minutes) 

Measurement began in ancient times when people needed a way to keep the trading of goods fair.  Early measurement was definitely an improvement from no measurement, but it still had some problems.  Often, body parts such as feet were used to make measurements.  Not all feet are the same size, so measurements made with peoples’ feet were not consistent.  Eventually a system of standard measurement developed, using constant values.  This activity helps students understand why standard units of measurement are needed.

Sizing Things Up (K-2 grades: 4 stations - 30-45 minutes -- for larger classes, measuring with rulers can be the 5th station)

Measurement is an important part of life at all ages and provides necessary information for the other stages of scientific investigation. This exercise promotes basic measuring skills with simple ordering and categorization activities.

Measuring Wheel (1-4 grades: 15-20 minutes)

Measuring the length of a straight line is easy; the only equipment necessary is a ruler. Determining the length of curvy lines seems more difficult but can be just as simple with the proper tools. A measuring wheel can trace winding paths to measure their lengths. Construction and use of measuring wheels will be described in this activity.

Sinking Objects (2-5 grades: 15-20 minutes)

This experiment illustrates making measurements and seeking patterns.  Students will collect data, prepare a graph, and interpret the data and graph in order to determine a relationship between water level and number of sunken objects.

How Many Beans? (3-5 grades: 30-45 minutes)

Is counting all the beans in a large container the best way to determine the amount? In this experiment students make observations and measurements on a large container filled with beans.  Students will indirectly measure the number of beans and determine the average number in the jar.


The Chemistry Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program. Teachers will pick at least 4-5 experiments from the experiment options below. All experiments are 5-10 minutes in length and for grades K-5.

Photograph of WOW volunteer teaching kindergartners about the physical reaction between hydrogen peroxide and potatoes.

Acid-Base Chemistry

Chemical compounds are grouped together based on similar properties. Acids are chemical compounds that are sour or bitter. Bases are a group of compounds that have opposite properties to acids. Bases are characteristically slippery. A number scale called a pH scale, which spans from 0 to 14, is used to provide information on how strong an acid or base is. Values on the pH scale between 0 and 7 are acidic; values above 7 are basic. A pH value of 7 corresponds to the neutral condition, neither acidic nor basic.

Color Changing Milk

This experiment is designed to show students the concepts of polarity, miscibility, and immiscibility. Chemical polarity describes how equally bonding of electrons are shared between atoms.

Chemical vs. Physical Changes

These experiments provide hands-on experience with chemical and physical changes. Set up multiple stations, and ask students to explain which experiments are chemical changes and which are physical changes. Safety goggles should be worn at all times.

Chemical Change: Baking Soda/Vinegar

Chemical Change: Potato with Hydrogen Peroxide 

Chemical Change: Making a Polymer/Slime 

Physical Change: Change of State/Vanilla Evaporate 

Physical Change: Is it a Solid or Liquid - Cornstarch/Water 


The Electricity Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program. All experiments below are 5-10 minutes in length and for grades K-5.

Photograph of WOW volunteer teaching a kindergartner about closed and open circuits

Connect the Circuit Game

Electricity can flow though a complete, closed circuit, but cannot flow though an open circuit. This concept is reinforced with a fun game that tests the steadiness and patience of the players while illustrating this basic fact.

Energy Ball

Circuits are everywhere! They are responsible for the lights over our heads, how our cell phones work, and how we watch TV. These devices only work, however, when those circuits are closed. This activity allows students to witness what it means when a circuit is closed, and to test what materials (including themselves) electricity can flow through.

Lemon Battery

Batteries use chemical reactions to create an electric current. In 1800, Alessandro Volta made the first battery by layering copper and zinc in a jar of salt water. The chemical reaction created the first steady supply of electricity. The steady supply of electricity from batteries is used to power all sorts of electrical devices such as toys, light bulbs, radios, calculators and cars. Following Volta’s example, we can make batteries, too. 

Parallel and Series Circuits

There are different ways to make an electric circuit.  In a series circuit, the amount of current through any part of the circuit is the same, while a parallel circuit divides the electric current into two or more “parallel” paths. By comparing the brightness of light bulbs, we can trace the current and voltage in a parallel and series circuit, to see how they differ. 

Static Electricity

We often think of electricity as only electric currents, such as power lines, or generators that “make” electricity. All matter is made of protons and electrons, so really all matter is “electric”—but we normally do not observe this electric charge, since the positive and negative charges cancel. A surplus or deficit of electrons will give an object a negative or positive electric charge—static electricity.


The Geology Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program. Teachers will select experiments that total a 45 minute to 1 hour class visit. For this unit, we work in collaboration with The Ohio State University's Byrd Polar and Climate Research Center and the Polar Rock Repository. They have rock boxes that can be loaned out to schools. Details to request a rock box can be found here at http://research.bpcrc.osu.edu/rr/rock_box/

Photograph of a rock collection for the Geology experiment

What’s Under My Feet? Soil Exploration (10-15 minutes, K-3 grades) 

In this activity, students will explore what is in the soil beneath their feet. Once the activity concludes, students will be able to draw and describe what they might find in soil. Soil is the loose surface layer of the Earth where plants grow. It consists of organic material (plants, animals), rocks, and minerals. Soil is formed over a long period and can take up to 1000 years for just an inch of soil to form.

All about Rocks Exploration (15-20 minutes; K-5 grades) 

In this experiment, students will get to observe, touch, and talk about different types of rocks. They will learn that there are the three types of rock: igneous, sedimentary, and metamorphic. These three types of rocks are interconvertible and comprise a cycle. 

Pangaea: Plate Tectonics Puzzle (10-15 min; K-5 grades)

The Earth’s solid crust is broken up into numerous tectonic plates, which slowly move, carried by the motions of the slowly-convecting semi-liquid mantle. These tectonic plates collide or separate, forming mountain ranges, ocean trenches, mid-ocean ridges, and regions of volcanic activity. (The “Making Mountains” activity illustrates the collision of an ocean plate and a continental plate.) The long-term result of this is that the locations of the continents have changed over time.

Journey to Center of Earth (5-10 minutes; K-5 grades)

This activity models the Earth's interior using different kinds of fruit.  Students will learn about the Earth’s crust, mantle and core.

How a River Runs (5-15 mins, with extension/sand; K-5 grades) 

Erosion is a geologic process that shapes the entire surface of the Earth. Water has, over millions of years, carved deep canyons, such as the Grand Canyon of the Colorado River; likewise, glaciers scoured out the basins that filled to become the Great Lakes. All the rock eroded away by rivers and glaciers does not disappear; it ends up as sand on beaches, silt in river deltas, glacial moraines, and ultimately, returns to rock as sandstone, shale, or conglomerate. This experiment explores how river erosion takes place. By varying the angle of the cookie sheet, different river gradients can be simulated, and the conditions that allow a river to meander can be explored.

Photograph of fossil impressions being created by pushing the fossil into clay and putting plaster in the impression.

Making and Dating Fossils (20 mins [50 min to dry]; K-5 grades) 

Fossils are something every student has heard about or seen, but few have actually touched or examined them.  In this experiment, students will do just that!  In addition, students will make their own fossils, and learn about where and when certain fossilized animals lived in the past.

Making Mountains (15-20 minutes; 3-5 grades)

The earth’s crust consists of two types – oceanic crust made up of material on the ocean floor and continental crust, made up of continental landmasses.  The oceanic crust, continental crust, and the upper mantle make up the lithosphere.  According to the theory of plate tectonics, the lithosphere is broken up into separate plates that move beneath the earth’s surface.  Mountains are formed when these lithospheric plates collide.  If oceanic crust and continental crusts collide, the oceanic crust is subducted beneath the continental crust, which pushes up mountain ranges—a process called orogenesis. This activity explores how mountains are made and shows the connection between mountain ranges and plate tectonics. 


The Insect Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program. Teachers will select whole categories or pick and choose from each category to total 45 minutes to an hour. For this unit, we work in collaboration with Center of Life Science Education and the Insectary for the live insects. We also purchase Painted Lady larvae from Carolina Biological

Photo of a Macleay's Spectre (insect) on a magnifying glass

All about Insects Category (Total for grades K-2: 40-45 minutes)

Includes *Gummy Worm Dissection (K-2, 5-10 minutes), *Insect Life Cycles (K-2, 10-15 minutes), Build a Bug (K-2, 5-10 minutes), and *Insect Symmetry (K-2, 5-10 minutes). 

Insect Communication Category (Total for grades K-5: 45-50 minutes)

Includes Insect Communication (K+, all: 30 mins or pick a part, 15 mins each) and Honey Bee Waggle Dance (K-2, but can also apply for older grades too), 15-20 minutes). 

Insect Diversity Category (Total for grades 3-6: 30-45 minutes)

Includes Camouflage (K+, 10-15 minutes) and *Insect Anatomy & Behavior (3-6, 20-30 minutes with a food web connection for 4-5). 

Insect Investigation Category

Includes *Crickets and Colors: (3-6, all: 30 mins or pick a part, 10-15 mins each), *Insect Habitat Preference (2-6, 15-20 mins and optional data/graph for 3-5, 20-30 mins), or *Insect Maze (3-6, 45-1 hr) with the first two experiments abbreviated. 

A * (star) indicates that live insects are involved. 


The Light Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program. All experiments below will take place during our WOW visit. All experiments are 5-10 minutes in length and for grades K-5.

Seeing in 3D
For this activity students will learn how 2D images can be seen in 3D. They will learn how human eyes distinguish between red and blue and combine in our brain to create a 3D image. They will also be learning about retinal fatigue, and why it occurs. The objective is to learn how our eyes and brain work together to create the world we see.

Seeing Rainbows
Students will learn about white light and color mixing. Students will gain an understanding of how white light is created from all colors in the rainbow. To help further their understanding we will show them color mixing with color wheels and lights. This shows them that when you see white light you are seeing rainbows!

UV Black Light Exploration
During this activity, students will learn about the effects of UV light. We will discuss where UV light rays come from and what they do. They will be shown black lights that show a colored glow that different things give off when under UV rays.

UV Light Beads
This activity has similar information as in UV Black light exploration. In conjunction, this activity talks about how UV rays affect us and our bodies. We will also teach students how to protect themselves from UV rays with black light demos and UV light beads.  After completing this activity students should have a good understanding of UV rays and its affect.

Why the Sky is Blue/What Makes a Sunset
No matter where we live in the world, we can all experience sunsets. What if you could create one with a few simple steps? In this experiment students will understand why and how sunsets occur. We will use common kitchen items to demonstrate how sunsets are created. It is easy to try and explain but when paired with the experiment it allows for them to retain and fully understand the information.


Coming soon!


Coming soon!


The Plants and Seeds Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program.

For grades K-3, there will be 3 stations of 3 experiments with a 15 minute duration for each experiment - the class can be broken up into 6 groups, 2 stations will have the same experiment with the students only rotating to 3 stations total. For grades 3-5, teachers can select the Diversity of Plants experiment to have 5 stations of a variety of diverse plants from all over the world and a 6th station focused on All about Fruits and Vegetables - students will rotate to every station. Grades 3-5 teachers can also select the 3 stations instead of the Diversity of Plants experiment stations. 

Celery: Plants and Water (Demonstration - 48 hour prep time needed) 
This demonstration can be combined with the All about Fruits and Vegetables experiment. Water moves through plants in tubes much like our veins and arteries, but it is the attractive forces of water that provides the power for movement rather than a beating heart like ours. Celery is great to observe how water travels through a plant! Just add some food coloring into the water and watch it change colors! The rate of water movement up the celery stalk is affected by the rate of water loss from the celery.

Photograph of WOW volunteer pointing to a tree while a kindergarten student compares his leaf to the tree photos

Three Stations: All about Fruits and Vegetables, Leaf Classification, and Traveling Seeds 

Photo of WOW volunteer working with 5th grader on the all about fruits and vegetables activity

All about Fruits and Vegetables (10-15 minutes, Grades K-5)
Fruits and vegetables make up a huge part of the human diet. It what helps us to stay strong and healthy! When distinguishing the difference between fruits and veggies, it can be difficult. Fruits grow on trees or vines and have seeds. While vegetables grow in the ground and do not have seeds! Did you know that foods like peppers, corn, and tomatoes are fruits and not vegetables? We will classify various plants as fruits and vegetables using their biological differences to help us understand this concept better!


Photograph of leaf classification cue cards with laminated leaves on top of the cards

Leaf Classification (10-15 minutes, Grades K-5)
We walk by trees every day without knowing their names, even without knowing the differences in each tree! Some trees have leaves that fall down, others have needles that fall down, some even have walnuts on them! Different trees provide different types of habitats for animals and helps us to be able to breathe! This activity will allow you to learn the differences in trees and be able to identify them yourself, just by looking at the leaves!


Photograph of a handful of bur oak acorns

Traveling Seeds (10-15 minutes, preferred Grades 2-5, can be done with K-1 too)
How do plants grow in all different places? How does their seeds travel so far!? Seeds travel many different ways, some of those ways are by wind, water, hitchhiking, eaten and excreted by animals, carried but not eaten, or plant dispersed. This experiment will allow your children to learn the different ways different kinds of seeds travel and how they travel.



Five Stations with sixth station All about Fruits and Vegetables: 

Photograph of Rebecca teaching 3rd grade students about a sundew plant from the OSU greenhouse

Diversity of Plants (45 minutes, Grades 3-5)
For this set of experiments, we borrow a diverse variety of plants from the OSU Biological Sciences Greenhouse. These plants represent different habitats or have unique adaptations to survive. What better way to connect with nature then by doing it with plants! When most people think of nature, they think of outside, but what if we could bring the outside in? With this experiment you can! There are many different types of plants. Some plants are aquatic, while others are terrestrial. Some like hot weather while others prefer cold weather. Also, all of our bugs and creepy crawlies rely on plants!




Photograph of a third grader using a magnifying glass to look at a sundew plant




Nothing gets bigger than the cosmos, and unlike many of our other units, the subject of space has few direct experiences for students to draw on, other than the presence of the sun and moon in our earthly sky. All the experiments and activities that make up the WOW Space Unit provide clear, hands-on activities that represent complicated subjects, like galaxy structure and moon landers, simply, so that students can easily learn about some fascinating space science.

The Space Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program. All experiments below will take place during our WOW visit. All experiments are 5-10 minutes in length and for grades K-5.

Cheerio Planets, Gravity and Spiral Galaxies
The existence of gravity, its role in the formation of the solar system, and the big picture of spiral galaxies can all be a little abstract for school kids, but with these simple experiments—which involve breakfast cereal, marbles and good old baking soda—some pretty abstract forms of the universe are made tangible for students.

Oreo Moon Phases
Kids usually have some conception lunar phases, sometimes more so in the older classes than the young, but by working together to replicate the moon’s changes with the cream and cookie of an Oreo, the idea sticks kids minds as well as their hands.

Craters of the Moon and Touchdown NASA
Hard to see with the naked eye, the numerous craters on the surface of the moon are the result of meteor impacts, which we help children grasp with a hands on activity involving a homemade moon surface. This is followed by an investigation of what makes a moon lander spacecraft land safely with homemade prototypes for the testing.

Size and Distance of the Planets
The cosmic size of our solar system’s planets, and the stretches of space between them, is a difficult idea to grasp. These experiments proportionally convert the space giants to a household scale. The difference in planet size is made clear with Play-Doh, and the stretch between the planets is exemplified with a measured length of toilet paper.

Constellation Exploration
Bad weather and light pollution can make stargazing a little more difficult to practice, but by working through our constellation activity, students can learn about the constellations visible in the night sky, and how to identify specific clusters with constellation detective worksheets.



The Sound Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program. Teachers will select experiments to total 45 minutes to an hour in length.

Does a tree make sound even if you are not around to hear it? Are you always hearing sound even if you are in complete silence? The sound unit will explore the different ways that sound travels and how far it can travel. Students will learn about sound waves, how animals communicate using sound, and how we can see sound waves even if we do not hear it. 

Seeing Sound Waves (Grades K-5, Time needed 5-10 minutes)
Notice that your car vibrates when your music is really loud or when a really loud car drives by? Those are sound waves bouncing off the different solid materials. Anytime a solid object vibrates that is just sound bouncing around. This sound bouncing around is called sound waves! In this experiment, students will use plastic wrap, a baking sheet, salt, and a tuning fork to see sound waves. 

Animal Sounds/ Communication (Grades K-5, Time Needed 5-20 minutes depending on the activities chosen)
Sound is used all around us in a variety of ways. One way that sound is used is to communicate. Animals use sound every day to alert to predators, locate others, communicate about food & water, or even to find mates. Some animals that you will hear the using sound to communicate are birds, frogs, and even dogs. For this experiment, students will play a guessing game with sounds on a Powerpoint to figure out what animal makes that sound. The second activity focuses on echolocation using paper towel tubes and an aluminum tin. Animals like dolphins, whales and bats use echolocation to locate each other, predators, or prey.

Pitch Switch (Grades K-5, Time Needed 5-10 minutes)
Humans can hear a wide range of sounds from really loud sounds to really low sounds. We can also hear different pitches of sounds like a pitch from a piano or a violin. The longer the string on the instrument the lower the pitch. For this activity, students will use a plastic cup, string, and paperclip to listen to pitch. 

Frequency, Resonance, and Beats: Tuning Forks (Grades 3-5, Time Needed each part 5 minutes, 15-20 minutes total)
All objects have a neutral frequency of vibration depending on their size and shape. When two objects have the same neutral vibration the sound vibration from one object can make the vibration from the other object the same. In this activity, students will explore tuning forks and talk about the doppler effect. 

How We Hear (Grade K-3, Time Needed 5-10 minutes)
This activity works in conjunction with Frequency, Resonance, and Beats to go a little more in-depth on the biology of how we hear. This will go into talking about how the ear works. The ear has two different components: one for tuning small vibrations and the other that detects the vibrations. 

Travel of Sound Through Various Phases of Matter (Grades K-5, Time Needed 5-10 minutes)
For sound to reach your ear, it usually travels through air. However, there are other ways sound can travel like through solids, liquids and gasses. Will there be a difference in sound based on what material it travels through? Students will find out this through this experiment. 

Bouncing Sound Waves (Grades K-5, Time needed 3-6 minutes)
This activity is a great activity to see how well your students know about sounds and teach them some new definitions. Here students will learn about reflection, how an echo is caused, and how to prevent echoes by absorbing. 

Bottle Sounds (Grades K-5, Time Need 5-10 minutes)
When solids, liquids, or gasses vibrate a sound is produced. Here bottles will be blown in with different size openings. Students will notice that the shorter the length, the higher the sound. The bottles can also be filled with different amounts of water to hear the different sounds and pitches each one makes based on water level.


What makes weather unpredictable? Why are some parts of the world always warm and other parts are always cold? Why do some locations get tornados and hurricanes every year? In this unit, we will discover the phenomenon of weather and students will learn what causes these different weather patterns. The Weather Unit will be implemented into the WOW Program visits once throughout the school's three year duration with the program. All experiments below will take place during our WOW visit.

Weather Fronts (Grades K-5, demonstration to take place before/after the program)
Students will learn the different kinds of weather fronts and what causes those weather fronts. For example, oceans will evaporate water into the air and increase the humidity, while polar regions will chill the air. When you have two different air masses then you will also have two different densities. These densities are what causes the weather fronts. We will demonstrate
this using a clear container split with water and add food coloring to mix hot (red) and cold (blue) fluids. This will allow
us to see how the cold and hot weather mixes and interacts together.

Windy Severe Weather (Grade K-5, takes 5-10 minutes)
What causes wind? Students will discover how winds are created by understanding the differences in air pressure. Warm air weighs less than cold air and warm air rises. When these two different temperatures interact it can create a swirl like motion. i.e. tornados. In this experiment, students will use an anemometer with half circles attached to help see the wind motion. Then they will use 2, 2-Liter bottles that will be attached to each other and mixed with water. Students will be able to swirl the water around inside the tube and see the swirling effect that will look like a tornado!

Tools to Measure Weather (Grades K-5, Takes 5-10 minutes)
Two common ways to measure weather is by using a thermometer or a barometer. A thermometer can be used in many different ways. It can be used to measure your temperature if you are sick or to measure a food's temperature to see if the food is finished. A barometer is an instrument used to measure the atmospheric pressure in forecasting the weather. In this
experiment, students will learn how to use and read both, a thermometer, and a barometer. This will allow the students to explore the effects of temperature on the density of liquids and relate this behavior to a makeshift thermometer to how a true thermometer works.

Air Pressure - Temperature (Grade K-5, takes 5-10 minutes)
Air pressure is the weight of air molecule pressure down on the earth. The greatest air pressure is pressing down at sea level and the higher you go up (climbing a mountain), the air pressure goes down. This is why our ears pop. They pop due to equalizing the pressure so our ears do not burst. Here students will learn how air pressure works by using marshmallows and a
closed container for the marshmallows. By the end of this experiment, students should have an understanding of how air pressure works and the effects it can have on life.

Rain Clouds (Grade K-5, takes 5-10 minutes)
What makes a rain cloud? How are they formed over and over again? We will talk about the water cycle and how rain clouds are formed. Here students will have a small cup of water with shaving cream on top. Then blue food coloring or liquid
watercolor will be poured on top of the shaving cream. Students will see how long it takes until the blue food coloring goes through the shaving cream and into the water. Then the next part of the activity uses a sponge to imitate a cloud and show how much water clouds hold. By the end of the experiments, students will be able to know what a rain cloud is and how it is filled, as well as become familiar with the water cycle.

Cloud ID (Grades K-5, takes 5-10 minutes)
Are students asking questions about the sky? The clouds? How are they made? Why do they disappear? In this experiment, students will learn what different kinds of clouds there are and how high up in the sky these different kinds of clouds sit. To help students understand these different types of clouds, we will use different materials like cotton balls, cloth, and a feather. There will also be images to go along with each description to help for better understanding.