Practice conversions within the metric system in this fun math card game for third graders.

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Your third grader will be amazed at the explosive combination of vinegar and baking soda in these chocolate volcano cupcakes with white chocolate "lava."

This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Learn about calorimetry, make a bomb calorimeter, and experiment with combusting different nuts to see which one produces the most energy!

Determine whether magic salt is more effective at melting snow than regular salt. Pour one ounce of salt over the ice cubes, compare the melt downs.

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

This measurement activity uses feet to compare objects, but not the ones found on rulers and measuring sticks...the feet on your child's own body!

Preschoolers are fascinated by how colors can be mixed to form new ones. This activity combines color mixing with the concept of melting for extra science fun.

Countries all around the world have been using the abacus for thousands of years to make math easier. Have your kid make his own abacus to practice arithmetic.

Your child can turn cookie dough into a big pile of colorful painted fall leaves ready for eating!

Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?

This potato cannon activity teaches your middle schooler about the principle of Boyle's Law. Make a potato cannon and have a blast learning about science.

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

Plants help keep a house cool! This article includes step-by-step instructions for completing this fun and interesting science experiment.

Check out this fun science fair project idea to determine if the size of a particle affect the rate or speed of a chemical reaction.

Dive into the world of cooking oil and smoke points to discover just how fast some oils start smoking.

The purpose of this science project is to investigate which will grow larger plants: compost, soil and Miracle - Gro, a mixture of both.

Explore the best way to store popcorn kernels. It examines the impact of moisture and temperature on unpopped kernels.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Kids will learn about insulation, heat conduction, and the economic benefits of energy efficient windows in this cool science fair project.

This science fair project will help learners determine whether algae can be made to grow by feeding it supplementary carbon dioxide.

This project examines the concentration of dissolved oxygen in water, with and without oil.

If your Father's Day festivities include meeting up with extended family, why not put all the dads to the test with a chili cook-off?

Check out this cool science fair project idea to explore the relation between onions and eyes and how to prevent eyes from tearing while cutting an onion.

The goal of this science fair project is to evaluate the effect of heat on sound wave frequency.