Kindergarten - 3rd Grade Science Projects Activities

Use pepper and soap to discover some fun facts about the properties of water.

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

This science fair project idea determines what household items are good conductors of electricity.

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

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

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

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.

Discover whether cold or hot water from the faucet will boil faster on the stove.

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

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

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

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

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

Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

This science fair project idea examines which type of insulation holds in the most heat.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

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

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

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.

Water, along with soil and light, is a necessary component for plant growth. So what's better for promoting plant growth: tap water, or rain water?

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

This project investigates the affect of storage temperature on microwave popcorn.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.