In this science fair project, students use the streak test to tell minerals apart from each other.

In this cool science fair project idea, kids conduct the ruler drop test on volunteers to determine whether reaction time can be improved with practice.

This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.

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

This science fair project on testing water hardness is a great introduction to practical chemistry. Test and learn the difference between hard and soft water.

Test whether plants can grow without sunlight and water.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Find out which kind of bubble wrap fares best when put in impact.

In this science fair project, students will try to discover if test subjects can detect the presence of Monosodium Glutumate (MSG) in food.

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

How well can people recall what they have observed. Test your knowledge in this fun experiment.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

What do ants eat? Kids find out by observing a colony of ants in this cool zoology science fair project for 4th grade.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science experiment tests if dog saliva can really help heal wounds.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

This experiment explores whether reading text on a computer screen or type on paper leads to better retention of the information read.