4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.

Kids will discover the meat science behind the meat they eat, and find out how to use safe chemistry to make meat more tender.

Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?

In this windmill model science project, you will build a windmill to learn about wheel-and-axle machines and how these simple machines are used to do work.

Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

In this activity, children will work on their mathematics and engineering skills as they attempt to recreate the Eiffel Tower out of building blocks!

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

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

This science fair project idea compares biodiversity between drops of water.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Science fair project about work and energy which uses a simple mathematical formula to predict how far a jar will roll down an incline.

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!

This science project teaches students to classify different shapes of leaves.

Learn about the power of exponents. The objective of this science fair project is to explore and understand how exponents are used.

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

This science fair project teaches students the differences between fruits and vegetables.

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

The purpose of this science fair project is to build a basic radio.

This science fair project idea investigates how color affects temperature.

This science fair project idea explores the egg's thin membrane.

This science fair project examines how seeds hitchhike on animals and clothing.

Take a dive into the candy jar with this yummy science experiment.

This science fair project idea produces varying pitches of sound.

This science fair project idea determines the probability of a coin landing heads or tails.

This science fair project idea identifies trees using a dichotomous key.

This science fair project idea explores the different properties of matter.