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Have your child kick off their summer vacation by making a miniature water slide!

Design Challenge: Making a Water Slide

In this fun activity, your child will create their very own solar oven to bake s&#39;mores!

Design Challenge: Making a Solar Oven

Discover whether a metal will expand under hot water.

Does Water Temperature Cause Metal to Expand and Contract? 

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Positive and Negative Geotropism

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

Edge Effect

Determine whether butterflies like to drink sugar water, salt water, or plain water.

Do Butterflies Prefer Sugar Water, Salt Water, or Plain Water?

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.

Text on Screen vs. Type on Paper: Which is Easier to Remember?

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Eureka! Volume and the Displacement of Water

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

Candy pH

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

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

This science project lets students explore the number of spots on a ladybird and how to treat ladybugs with respect.

Where Did the Ladybug Get Her Spots?

The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.

Compost Ingredients

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

Growing Bacteria

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Simple Machines

Science fair project that examines condensation and the conditions needed in order for dew to form.

Dew Point, Humidity and Weather

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

When Seeds Explode

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

Cats & Dogs

This science fair project investigates why the number of visible stars changes from place to place.

Stars In The Sky

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

Principles of Air Pressure

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Flat Earth? Not Really!

Windmills have been around for generations to grind food and create energy. During this challenge, students will use various materials and put their engineering skills to work by creating their own windmills.

Wacky Windmill Challenge

In this experiment you explore how tectonic plates move to create land and expand bodies of water.

Exploring the Movement of Tectonic Plates with S'Mores

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

Get Cracking

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Passive Solar Heating

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Testing Water Hardness

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Upside-Down Plants

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Cooling Food: Microwave vs. Oven

This science experiment tests if dog saliva can really help heal wounds.

Can Dog Drool Kill Germs?

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling
into the moat.

Sand Bridge

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

The Chemistry of Dyeing Easter Eggs

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