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.

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.

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

In this science fair project, kids measure how weather conditions affect how fast a puddle evaporates.

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

In this science fair project, young children discover what happens when two fluids that have different densities get together.

In this project children discover, identify, and sort seeds from a variety of fruits and vegetables

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.

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.

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!

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

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.

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

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.

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

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Kids will explore the corrosiveness of soda in this cool science fair project by leaving pennies submerged in soda overnight.

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Wiggly worms are known for staying buried in the soil, but how does that affect plants? Are earthworms and plant growth related?