Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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.

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

This science fair project idea explores whether white light can be separated into different colors.

I scream, you scream, we all scream for homemade spearmint ice cream!

In this experiment we will be determining whether birds prefer certain colors of seed.

In this science fair project, students use the streak test to tell minerals apart from each other.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

Discover whether cold or hot water from the faucet will boil faster on the stove.

Test whether plants can grow without sunlight and water.

This science fair project idea demonstrates that plants give off water.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Make a spring collage with your child to get them outside and those creative juices flowing!

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

Help your child make a beautiful homemade sandcastle that will last!

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.

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.

Learn how to make marbleized paper with simple everyday ingredients in this fun activity! Your child will learn about oil and water while doing this project.

This science fair project idea demonstrates that light travels in straight lines and experiments with reflecting light.

This science fair project idea determines the most effective method of preserving food.

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

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

This science experiment tests whether warm or cold water works best in making cut flowers last longer.