In this science fair project, young children discover what happens when two fluids that have different densities get together.

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

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 science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

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

Slime: It's oozy, it's goopy, and it's just plain fun! Learn how to make slime with this fun science fair project.

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.

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

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

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!

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

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!

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

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.

This science fair project idea explores how length affects the weight a bridge can hold.

This science fair project idea investigates how the shape of an object affects drag.

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

What is surface tension? Kids will discover how water-skating insects use surface tension to keep from sinking by making a model water walker.

This science fair project idea demonstrates how air resistance contributes to denser objects falling faster than less dense objects.

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

This science experiment has students test whether a snail moves faster on concrete or dirt.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.