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.

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 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.

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.

Find out whether packaged seeds actually do expire in this new science fair project idea.

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

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

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.

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 identifies trees using a dichotomous key.

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

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!

How do organic materials become soil? This science experiment measures what materials biodegrade.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

This science fair project idea examines the reason boats are shaped and engineered.

In this science fair project, students make their own rain gauge to measure rainfall.

This science fair project idea discovers which brand of bubblegum produces the largest bubbles.

This science fair project idea investigates how magnetism can defy the force of gravity.

This science fair project will help students learn about non-vascular plants, such as mosses.

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

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.