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

This kinesthetic learning activity will help your fourth grader get a firm grasp on the immensity of the solar system.

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

This easy aerodynamics activity is a simple way to introduce kids to the scientific method.

Explore scientific concepts with this experiment that introduces kids to the scientific method!

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

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.

In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

Is it amplitude? Weight? Length of string? Kids will discover what factors changing the period of a pendulum depends on in this fun and easy physics experiment.

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

Unlike other seed sprouting projects, this one allows kids to compare five different sprouts (either 5 herbs or 5 flowers) by watching them grow in a glove.

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

Kids build a desert food chain, desert food web, and desert food pyramid in this cool science fair project to learn about trophic levels and consumers.