Check out this science project idea to compare organic produce to non-organic produce and how preservatives in food extend the shelf life of goods.

People have favorite flavors, but what about ants? Which ant food is the most popular?

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

In this science project idea learn about working of different types of smoke detectors and find out which one is the most effective for you.

Create a habitat for a butterfly right in your own backyard, and build your first grader's science knowledge while you're at it.

This simple experiment serves as an introduction to the greenhouse effect.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

In first grade, children are introduced to fractions. Here's a recipe that combines fraction practice with winter fun and lets kids actually paint the snow!

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Get your child outside to observe the clouds, and get a fun exercise in science, writing, and arts and crafts! Here's how.

Can you dig it? This science experiment isn't for kids who like to keep their hands clean.

This craft is a great way to explore the fascinating world of spiders and their webs as you collect spider webs from around your house with your third grader.

Start thinking about how the internet works by assembling an Ethernet cable of your own!

When critters protect themselves by taking on the patterns of nature, it's called "camouflage." Play this camouflage matching game with your child!

This activity allows your kindergartener to translate what they observe into a beautiful poem.

Try this fun and simple activity to help nurture your child's observation skills and nourish a growing love of science!

Help your child celebrate the summer and the sun by making a sandy seascape.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

This science fair experiment examines the relationship between gender, age, and smiling.

The objective of this experiment is to evaluate the effects of acid rain on plants.

This activity is a fun way for your first grader to learn about how veggies help your body while being creative with art and drama. Here's how to get started.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

The fish most kids see is usually filleted, and it's hard to see how it came from a lake or sea. This cool gyotaku activity blends life science with art!

A great science fair project on solar oven design that helps kids learn about solar power and solar heating.

This science fair project idea explores how far the âdanger zoneâ is from different types of caution signs.

Science fair project that determines which materials cause the most friction by sliding blocks of wood down a ramp.

Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.

Turn the common pastime of constructing paper airplanes into a lesson on the physics of aerodynamics and flight with this fun science activity.

The garden is the perfect place to practice math and science with preschoolers. Get digging (and counting, sorting, observing at the same time!)