Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.

In this activity, you'll send your kindergartener on a scavenger hunt to find sounds and create a sound recording. Here's how!

Check out this fun science fair project idea for middle school students to learn about the effects of temperature on the density of a gas such as air.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

This experiment investigates whether the Ranschburg Effect is observed more frequently in older or younger adults.

Science fair project that determines the correlation between the ability of selected materials to conduct heat and a material's density.

What is the Doppler Effect, or the Doppler Shift? The purpose of this science fair project is to determine how distance impacts the Doppler Effect.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

Kids will make a homemade electroscope and explain how it detects static charges through induction in this fun science fair project idea.

Study how liquids separate into layers by creating a liquid gradient, different density liquids separate into layers in a graduated cylinder.

This science fair project idea will be examining oxidation and acid rain

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

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

Science fair project that examines how cell membranes allow the inward and outward flow of materials as demonstrated by eggs.

This social science experiment assesses whether the timing of peak mental performance shifts from afternoon to morning as we age.

This simple heat transfer experiment is a great introduction to the concepts of heat transfer and conduction.

Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

In this fun science fair project idea learn about the multiple sources of radio waves and fin out how difficult it is to block them.

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.

Can you plant the insect-attracting borage plant to increase the amount of beneficial insects in your garden? Find out in this experiment!

Determine how good we are at direct and indirect observation.

What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.

Science fair project idea examines different techniques for memorization. Analyze results of memory tests to determine which method is most effective.

This project determines what category of person is most likely to be ticklish.

Examine the presence of seeds in open fields. Collect seeds on socks by walking through open fields of grass or other growth. Germinate seeds on socks

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

Learn about savanna flora and fauna in this science project! Take a look at characteristics of tropical grassland plants and animals that help them survive.