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

Create a bee garden to help shelter bees in your area.

This project compares the strength of one, two, and three-ply toilet paper.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

Check out this cool science fair project idea that models the behavior of the cold desert plants: xerophytes and halophytes.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea highlights decomposition rates by comparing how long it takes an item to decompose in a compost pile vs. a landfill.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

In this experiment, young ecologists will learn about a type of edge effect: how trees and plants at the edge of a forest can act as a weed filter.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

This biodiversity project examines the biodiversity in your own backyard.

examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.

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

This science fair project investigates why the number of visible stars changes from place to place.

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

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.

Here is a hands-on activity to help third graders understand the four points of a compass...and how we use them to get around.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science experiment tests if dog saliva can really help heal wounds.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

Make a seed bomb and let your junior guerilla gardener spread flowers far and wide.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

Science fair project which tests various sedimentary, igneous and metamorphic rocks to find out whether one rock family is stronger than the others.

This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.