Engage your children with this fun fall activity that integrates math and science. First, your child will excavate to find leaves. Next, they'll examine them to determine the colors. Then, your child will graph their findings.

Use a dichotomous key to identify plants or animals.

This science fair project idea experiments with spinning color wheels and optical illusions.

Science fair project that determines whether moths are attracted to one color of light more than others.

Which type of sunglass lenses gives you the best protection from the sun's harmful UV rays? Find out in this cool science project!

This project examines which style of central-air system filter traps the most particles from the air.

Teach your child how to create lots and lots of line designs by wrapping string around wooden blocks, and using them to create line-filled prints.

This cultural craft makes a pretty decoration and teaches kids about other cultures.

Kids conduct a simple birdseed experiment to figure out what kinds of birds live nearby in this fun science activity.

Is your child a young ornithologist in the making?

This experiment demonstrates the conservation and transfer of energy using a marble rolling over sandpaper.

How do organic materials become soil? This science experiment measures what materials biodegrade.

Before Twitter, birds were the ones tweeting, not humans. Have your child discover the magical sounds of nature while recording birds around his neighborhood!

Determine which video game elevates the heart rate best and burns the most calories.

In this activity, students will think about the form and function of household objects as they compare and contrast kitchen serving spoons of various sizes and designs.

Observe if dissolved aspirin will help plants grow healthier and faster in this science fair project idea.

Want a fun craft project that will get your preschooler using his senses? Create a colorful, abstract piece of fabric art with your child!

After completing this fun science project, your child will have a better understanding of plants, and they may even develop a green thumb in the process!

Encourage your child to eat nutritiously by having them build this delicious summer fruit cone!

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

This bread mold experiment will help your child learn about mold, and he'll develop important hypothesis-making and experiment-designing skills.

Try this fun and interactive collage activity with your preschooler to teach her the "building blocks" of math and architecture.

Discover if soda geysers will erupt when using regular vs. diet cola and which candies will create eruptions.

Eating a healthy breakfast starts the day out right, and your child can make something tasty and nutritious while honing her culinary skills!

It's not always bad to think negatively -- step into the creative and unique world of negative space drawing!

Science fair project that tests whether cats have a preference for organic food.

Put some spring back in the season and teach your child a little about plants with this fun paper flower art project!

Young scientists develop a hypothesis, conduct an experiment, and then revise their hypothesis to find out which common household liquids dissolve candy corn.

Learn about the effect of artificial light on plant growth versus natural sunlight and delve into some biology and botany concepts in this science project.

It's not actually that hard to get energy from garbage! Kids learn how to make biogas in the form of methane with this cool and easy science fair project idea.