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Elementary School Engineering and Science Inquiry Activities : Page 2

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

Design Challenge: Making a Catapult

In this exciting and empowering challenge, your child will construct a bridge using marshmallows and toothpicks!

Design Challenge: Building a Bridge

Start your toy engines -- this is going to be a fast and friction-filled race!

Car Friction: The Science of Going Fast

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Heat Capacity of Water vs. Heat Capacity of Oil

In this activity, your child will be challenged to make a tower using paper cups.

Design Challenge: Creating a Cup Tower

In this science fair project, young children will become aware of and have the opportunity to experience the four basic tastes: sweet, sour, salty, and bitter.

Exploring Taste: Sweet, Sour, Salty, and Bitter

What are the effects of fertilizer on plant growth? What's the best fertilizer type (solid, liquid or powder)? Kids find out in this science fair project idea.

Best Fertilizer: The Effects of Fertilizer on Plant Growth

This science fair project idea experiments with spinning color wheels and optical illusions.

A Trick for the Eyes: Color Wheels and Optical Illusion Tops

In this activity, your child will transform an egg into a glowing, bouncy &quot;ball&quot; that they can play with.

Design Challenge: Glowing Bouncy Egg

This science fair project idea explores whether talking to a plant will help it grow.

Talking to Plants

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Halloween STEM Building Challenge

Use popcorn in this tasty experiment to explore the five senses at home with your kindergartener!

Popcorn Science for All Five Senses!

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Which Food Will Mold the Fastest?

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Windmill Model Science Project

What are the effects of colored light on plant growth? Explore plant behavior in this cool botany science fair project and learn about phototropism!

Plant Phototropism Experiment

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Fastest Way to Cool a Soda

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Testing the Solubility of Common Liquid Solvents

This science fair project idea explores the different properties & interactions of sugar molecules.

Sugar Crystallization

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

How to Make a Lemon Battery

Take a dive into the candy jar with this yummy science experiment.

Candy pH

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

Do Plants Need Water?  

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

How Do the Phases of the Moon Affect the Tides?

Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.

Growing Plants in Garbage

Check out this cool science fair project on identifying rocks and minerals for kids.

Identifying Rocks and Minerals

This project examines whether people's taste perception is influenced by what they see.

Taste Perception

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Duck Feet

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

Hydrogen Peroxide and Yeast

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

Reaction Time: The Ruler Drop Test

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Earthworms and Light: Do Worms Prefer Darkness?

This science fair project idea discovers if an artificial light source will yield the same plant health and growth rates as light from the sun.

Do Plants Grow Better in Sunlight or Artificial Light?

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