This science fair project investigates why the number of visible stars changes from place to place.

What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.

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

Can you increase the light and plant growth in your garden using mirrors? In this experiment, measure light reflection and find out!

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 creates a sedimentary rock and to investigate what takes place during the rock cycle.

This project compares the strength of one, two, and three-ply toilet paper.

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

The project investigates how friction affects motion by using different surface textures.

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

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.

Science fair project that examines how to grow bacteria in a controlled setting, using simple materials from around the home.

In this project, waves of vibrations are experimented with using water in glasses.

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 project students experiment with making music using only glasses of water.

Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.

Construct and experiment with a periscope using reflected light rays to gather an image.

In this science fair project you will make a model of a cell membrane using very simple material.

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

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this design challenge, your child will create a parachute for a small toy using typical household items.

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

In this design challenge, your child will make a bottle rocket using typical household items.

The possibilities are endless with this fun Halloween-themed STEM activity! With simple supplies, your child will experiment, adapt, and use their creativity while they build structures using different specifications.

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!