This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

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 classic children's game demonstrates how sound travels through air vs. through a solid.

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

In this awesome science fair project idea, kids will be attempting to pick up different objects using snail slime.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Using a toy race car kids create a visual model of the Doppler Effect.

In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

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.

In this science fair project, young children notice and track changes in trees throughout the year.

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

Learn how different types of soil affect how animal tracks form in this experiment!

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Kids will learn how to clean fish tank the natural way. Add catfish to the tank and see if your water gets cleaner.

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

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?