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.

Learn how different types of soil affect how animal tracks form in this experiment!

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.

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

In this experiment you will replicate the mummification process by making a hot dog mummy.

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

In this project, create and examine garden mulch to find out what critters live in the messy, muddy layers just above the soil.

Find out which type of sponge holds the most water.

This science fair project idea experiments with spinning color wheels and optical illusions.

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

Why do ants like sugar? Do ants like artificial sweeteners too? Kids find out with this great inquiry-based science fair project.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?

In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.

Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.

The goal of this project is to create an exciting topographical map out of dough.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

Use pepper and soap to discover some fun facts about the properties of water.

In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project idea builds models of various types of bridges and then determines which bridge design is the strongest.