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Many ancient cultures used the rising or setting sun to create calendars. Observe the setting sun once a week to come up with your own solar calendar!

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

What does yeast eat? Sugar, of course. But yeast also has some powerful enemies in the form of antifungal agents! Kids test them out in this fun yeast lab.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

Got a birdwatcher on your hands? Bring the birds to your backyard by making a zany bird feeder using an orange and some string.

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Help your child create a written message and practice their letters using sticks they find in nature. Here's how to get started.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

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

Creating a home for a toad is an easy and fun project for kids. Here's how to make your very own toad abode.

The objective of this project is to examine the ways in which a passive solar house may contribute to conservation of energy.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

You've heard the expression "burn rubber" but do you know how heat affects rubber? Examine the impact of temperature on rubber in this fun science experiment.

Help your kindergartener expand social studies and science work while creating this lovely bag clip for the holidays.

Kids learn about examples of mechanical weathering and conduct an experiment with seeds and plaster in this cool geology science fair project idea.

Investigate how to keep your fruit fresh for longer. The purpose of this science experiment it to determine which kind of bag best preserves fruit.

In this math and science activity, help your middleschooler learn about proportion and measurement with just her shadow and a tape measure!

Build a bird feeder science craft that brings birds to your yard, and a smile to the whole family's face.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

Science fair project that explores the variety of webs that spiders weave and collect specimens for identification.

Determine how wind speed affects the stability of a kite and the ease of getting it into the air.

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

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

Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Slip some science into storm watching with a homemade rain gauge!

Science fair project that examines the physical features of elephants and butterflies and draws conclusions about their similarities.

Research fruits and their ripening stages, follow and document the different stages. Analyze what causes fruit to continue ripening after being picked.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

Soil is made up of different layers. How far down do you need to dig to find the soil horizon, or the place where bits of leaves and branches become soil?