In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Explore if planting seeds in a certain direction will affect how fast it germinates.

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

Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

Test your friends to find out if you can replicate the placebo effect's incredible results.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project idea investigates how the height at which a pendulum is released affects the length of time it continues.

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.

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

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

In this experiment you will replicate the mummification process by making a hot dog mummy.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Find out whether soil amendments can improve soil conditions and help you grow a bigger beanstalk in this ecology experiment!

Climates with more snowfall have more coniferous forests and fewer deciduous ? Learn about how pine trees in a coniferous forest adapted to withstand snow.

In this experiment, your child will create two compost bins and see if he can determine what attracts fruit flies.

This science fair project idea compares biodiversity between drops of water.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

This science fair project idea investigates if fats add to the flavor of food.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.

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

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