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Can a horse lead itself to the carrot? Train your horse with carrots and boxes and test horse memory in this fun zoology science fair project.

This interdisciplinary card game will have your third grader working on math facts as he travels through the solar system!

Develop your child's mathematical and engineering skills with this fun building brick challenge. In this activity, your learner will be challenged to create a boat out of building bricks.

This science fair project idea explores how the shape of a boat affects its density and how much weight it can float.

In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.

In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

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

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

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

Your child can use leaves and grass to create his own outdoor art in celebration of Earth Day...all he needs are is the great outdoors and some creativity!

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Science fair project that demonstrates the effect of detergent pollution on fresh water birds' ability to stay afloat.

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!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Hatch a praying mantis egg case in a homemade habitat with your child's help! This is an amazing experiment in science and nature for kids of any age.

Clouds are formed when warm and cold air meet. Here's a way for kids to see it all up close!

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Make a backbone model to explore human anatomy and life science.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

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

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

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