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.

In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

We all know that the Moon has different phases, but it can be hard to figure out why. Try this activity to see how the Moon's phases really work.

Conduct a simple experiment with your child to study how dirt tracks change as they age in this 1st grade science activity.

To help your child learn how to use a thermometer, try this temperature collecting activity at home.

This project explores ways to prevent static electrical shocks.

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 fun guessing game, your child uses his sense of smell and taste to figure out what is in the container. Here's how to play:

This science fair project idea determines if family members can recognize one another using only the sense of smell.

This science fair project examines which fruits and/or vegetables will ripen prematurely when placed with ripe apples.

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

Science fair project that helps you better understand density by comparing the relative densities of cans of Coke and Diet Coke.

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!

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

In this project, several food items are tested to determine whether they contain starch.

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.

In this project, vinegar and salt act as preservatives keeping bacteria from growing in the bouillon mixtures.

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

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

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.

Kindergarten algebra is a lot different than high school. In kindergarten math, algebra means grouping like things, or noticing what doesn't belong in a set.

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

Here's a pressed leaf card project that puts science and writing together for your second grader.

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.

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

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

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