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 the difference in reaction times between boys and girls.

Discover whether the â5-second ruleâ is effective at determining whether food is still safe to eat after being dropped on the ground.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

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

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

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

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

This science fair project idea investigates whether plants can survive being frozen.

Science fair project that determines whether landscaping fabric impacts the ability of plants to receive water.

Have your kid determine if a goldfish can be conditioned to expect food the same way Pavlov's dogs did with this fascinating science fair project.

Learn whether writing things down really makes things easier to remember.

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

In this science fair project, students create their own miniature salt flats at home.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

This science fair project idea examines which type of insulation holds in the most heat.

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

This science fair project idea explores substances that cause a bubble to last longer.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Examine which metal conducts more heat by boiling water in 3 pans made of aluminum, copper, and stainless steel.

Examine the effect of pressure on carbonation in soda.

The objective of this science fair project is to analyze the effects of salinity and temperature on water.

What's the difference between a microwave and an oven? Use mashed potatoes to explore which kitchen appliance does a better job at keeping food warm.

Discover whether cold or hot water from the faucet will boil faster on the stove.