This science fair project idea explores the fastest average speed a human can talk.

Test of the effect of exercise on rote memory. Prepare a single list of 40 randomly chosen words. Have volunteers recall as many words as possible.

Discover whether ants are more attracted to natural cane sugar or artificial sweeteners.

This experiment will examine and precisely measure the amount of sugar in various sodas.

Science fair project that explores the phenomenon of Non-Newtonian fluids by exerting force on different materials.

This experiment explores the trend of reactivity in the alkaline earth metals as you go down the second column of the periodic table of elements.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

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

This science project involves comparing the relative effectiveness of salt, pepper and dehydration in food preservation.

This science fair project idea produces sounds by creating vibrations using different objects.

Devise an argument for or against the possibility of resurrectin extinct species through DNA manipulation. Analyze data, report findings.

The objective of this science project is to determine whether the brain first processes colors, shapes, or words when given conflicting messages.

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

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

This science fair project idea explores whether cats can be trained in the same way that dogs can.

Investigate the advantages of the use of ceramics in engines such as the tiles used in Space Shuttle. Use iron filings and magnets.

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

What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.

Does nail polish really slow the growth of nails? Explore in this science fair project idea.

In this project, you will observe and record changes in sunspots over two weeks.

This experiment evaluates whether motivational music can improve athletic performance.

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

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

In this experiment you will evaluate whether praise improves athletic performance.

In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.

This basketball project explores the best way to make the perfect shot every time.

This experiment will explore how mallets of various materials and weight create sonic tones of varying lengths.

Check out this fun science fair project idea to measure bacterial colonies from door handles and explore the effectiveness of different cleaning agents.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.