Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.

Discover flight initiation distance as you play around in the park with this fun bird watching project!

This science fair project idea provides evidence that air is everywhere and takes up space.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.

Do you think heat can affect a plant's growth rate?

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

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

Have you ever seen fruit decay? Find out if a fruit will rot faster if you open it versus leaving it untouched!

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.

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

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

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.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

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.

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

In this design thinking activity, your child will choose an animal to research, learn about the animal’s habitat, and then replicate the animal's habitat using household items.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

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.

This science fair project idea examines whether the colors of the spectrum respond differently in the thermal aspect when radiated by the sun.

This is a fantastic and easy science experiment where kids will learn about elasticity by testing how high bouncy balls of different materials can bounce.

Challenge your learner to design and build a city of their own in this creative engineering activity.

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.

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.

This science fair project uses paper chromatography to investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.

In this activity your child will create their very own marble maze!

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.