This science fair project idea explores how length affects the weight a bridge can hold.

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

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.

Explore if planting seeds in a certain direction will affect how fast it germinates.

In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.

Help your child get to know the least-appreciated of the five senses, the sense of smell, with a smelling station.

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

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

Learn all about balance and motion as your child designs a corn maze!

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

Kids will build a turtle habitat in order to observe the climate preferences of this cold-blooded reptile.

This activity is a great way to teach kids that, to find examples of science in action, they donât need to look any further than their own backyard.

Perk up your front porch with this hanging vase craft, perfect for spring and for getting kids outdoors!

Your fourth grader will be astonished to discover the significance and intricacies of his spine as he builds a model of a human vertebral column.

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

This science fair project examines how seeds hitchhike on animals and clothing.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Along with being an interesting science activity, dehydrated strawberries are also tasty â and healthy!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

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.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

Your kid will delight in creating an extraterrestrial vehicle from goods found around the house. There's no telling where her imagination will go!

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

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.

Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?