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

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.

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.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

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

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

Learn how to demagnetize a magnet and how physics can explain this phenomenon with this enlightening science fair project.

Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.

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 pinto bean germination experiment, you'll learn about how fertilizer aids in growing pinto beans into seedlings.

Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.

Kids learn how to prevent erosion by growing grass. They'll test soil with grass against raw soil in this revealing science fair project idea for 4th grade.

Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.

What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!

These flying potato poppers make a cool sound, create a celebratory mood, and they can teach your child about the power of air pressure.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.

What combination of cloth and stain will be the easiest for removing stains? Test and experiment!

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.