Your child can help your family pet take a breather, and help herself relax, too, with this soothing activity.

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

Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.

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

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

Get your sense of humor ready for this fun science experiment that demonstrates the fundamental physics of air pressure.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.

Camouflage is one of the most important animal adaptations in the African savanna biome. Kids create their own camouflage with this fun science fair project.

The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.

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 homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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.

What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

If you're looking for something to keep your kid busy on a warm day, and give him some writing practice in the process, bring on the mud!

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

How powerful is the reaction between baking soda and vinegar? Find out here!

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.

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

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

In this activity, your child will learn about a style of gardening that uses moss, also called "kokedama."

The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Help your child plant a "tea garden": a garden made of herbs for making teas.

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