In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

Is cleaning with lemon effective? Get ready to give this science project some elbow grease and find out if acidic lemons can be used as a cleaning agent.

Examine whether distilled water, spring water, or regular tap water yield faster plant growth.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

Looking for a fun summer adventure? Learn what it was like to be a prospector during the California Gold Rush by panning for gold in a local creek.

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

Science fair project in which you will attempt to throw a ball the greatest horizontal distance possible by using different angles.

Science fair project which uses coins flips to visually demonstrate the probability of an event and how to express it.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

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 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 discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

In this fun activity, your child will create their very own solar oven to bake s'mores!

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Find out whether a longer airplane will fly farther or a wider paper airplane.

This fun science project helps to investigate how much water can a plant take up and release in a certain period of time through the process of transpiration.

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

This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.