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

This science fair project idea attempts to train a worm to complete a simple maze in order to find out if worms can learn and remember.

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

Science isn't ho hum anymore when it involves building catapults to teach your fifth grader about projectile motion.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

What can you do with hair after its cut? This science project teaches you practical uses for human hair.

The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.

Turn an abstract lesson into a practical craft with the fun and colorful creation of dough earth layers!

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.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

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

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

Invite your third grader to do taste test science to observe how a strawberry tastes when it is paired with various condiments. The results may be surprising!

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

Test whether plants can grow without sunlight and water.

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

Learn how to make a weathervane with this fun and simple meteorology project for fourth graders.

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

This project examines whether people's taste perception is influenced by what they see.

Find out whether putting something on top of a plant will inhibit its growth.

This project determines what category of person is most likely to be ticklish.

This project explores ways to prevent static electrical shocks.

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

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

Explore scientific concepts with this experiment that introduces kids to the scientific method!