Showing Results for how when : Page 2

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

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!

In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.

This classic children's game demonstrates how sound travels through air vs. through a solid.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

Explore how sound waves are reflected and absorbed by producing echoes. Analyze which locations produce echoes.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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.

In this science fair project, we'll explore how blocking the sun's light can stop those can stop photosensitive paper from changing color.

Are your taste buds up for the challenge? Put tongues to the test with this science fair project that examines who enjoys sour flavors more, adults or kids?

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Dinosaurs were huge creatures that left behind huge footprints that lasted for millions of years. In this science fair project, kids learn how dinosaur tracks were left behind!

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

This science fair project explores how osmotic pressure forces water through the root up into the plant.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

What does a raindrop look like when it splashes on the ground? Is each raindrop unique like snowflakes? Find out how raindrop size varies in this experiment.

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.

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.

Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Find out whether putting something on top of a plant will inhibit its growth.

This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.

This project explores whether plants can live and grow when "watered" with juice, soda, or milk.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.