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Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Making Sugar Crystals

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Build a Tunnel

In this lesson, students will learn the word 'animation' and create an animated figure in a flip book.

Flip Book Animation

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

How Do Oil Spills Affect the Environment?

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.

Energy From Garbage: How to Make Biogas

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

Why Do Apples Turn Brown?

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.

Sink or Swim: Calculating Density of Fruits and Vegetables

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

Transpiration Experiment

Science fair project in which you will start a fire from scratch without using matches or a lighter.

Starting a Fire

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

Animal Tracks and Types of Soil

Why do plants wilt? Kids will learn to think critically about what environmental factors affect plants, and what plants need to survive.

Why Do Plants Wilt?

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Drum Size and Pitch

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Fruit Fly Life Cycle

In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.

Tangential Velocity and Circular Motion Experiment

What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!

Tropical Rainforest Trees: Buttress Roots

In this lesson, students will learn to create a simple algorithm using block code. The platform used for this activity is a website created by Google that provides free educational games that teach students to program using block code.

What Is an Algorithm?

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?

Earthworms and Plant Growth - Are They Related?

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Crayon Rock Cycle Experiment

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 Do Icicles Form?

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

How to Make a Lemon Battery

This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.

Bridge Project

In this lesson, students will create a set of instructions for navigating a life-size maze.

Life-Size Maze

In this lesson, students will solve a design problem as they create a marble maze out of LEGO bricks.

LEGO Marble Maze

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

Soil pH: Acid or Alkaline?

What do worms eat? Kids find out what kinds of rotting leaves and vegetables worms prefer in this cool compost science fair project.

What Do Worms Eat? A Compost Project

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Ew... Brown Guacamole!

Kids conduct a cool balloon rocket experiment in this fun science fair project idea. Does a greater volume of air mean a greater distance traveled?

Balloon Rocket Experiment

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

Chemical Indicators

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.

Positive and Negative Geotropism

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