In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

Do you think heat can affect a plant's growth rate?

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

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

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

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

This science fair project idea investigates the difference in reaction times between boys and girls.

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

Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

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

Plants and light seem to be good buddies, but how far does the friendship really go?

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.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

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

In this project students experiment with making music using only glasses of water.

This science fair project idea demonstrates that plants give off water.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

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

Challenge your learner to design and build a city of their own in this creative engineering activity.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Do different types of oil mix or stack? Find out in this science fair project idea!

In this science fair project you will make a model of a cell membrane using very simple material.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

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