Does your middle school teenager have good reflexes? Gauge his reaction time in this science and math activity that requires only a yardstick and a friend.

This basketball project explores the best way to make the perfect shot every time.

Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.

The next time you and your fifth grader go on a hike, take along this key to figure out which common North American animal left a track along the river bank.

Your child can explore the wonders of science, and the concept of dehydration, along with creating a healthy and tasty treat!

Show your fourth grader how to see her heart in action. Make a simple device out of a drinking straw and clay to help her spot the movement of her pulse!

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.

Learn about the fruit fly life cycle in this experiment. Capture fruit flies to examine various stages of insect metamorphosis.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.

Roasting pumpkin seeds makes for a great Halloween activity, and a healthy snack!

Grow potatoes in a plastic bag—easy to grow and harvest, and yummy to eat!

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

Make sourdough bread...and learn some colonial history and modern science in the process!

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.

Use simple items to create a kindergarten "grow box" that lets a kid see just how salad plants send down their roots and grow underground.

In this game, players will learn interesting facts about animal adaption and practice them using a fun matching card game!

Make some easy homemade yogurt with your young scientist, and see what a few 'live' bacteria can do in the right conditions!

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

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

Help your child create a working lung model that fills with air just like the lungs inside of his own chest when he breathes.

In this science experiment, your child will test the strength of hollow structures in order to understand how strong bird bones really are.

In this activity your child will make a coiling snake out of simple household materials, and also find out why they coil.

What happens when eyes see something that the brain knows cannot be true? In this science activity, the brain has to "fudge" it when interpreting what you see.

With this hands-on activity, you'll show how fall colors are hidden in the leaf all year long!

Help your child learn about animal classification with this fun and delicious activity.

Here's a fourth grade science craft with lots of benefits: it's good for birds, good for your child's learning, and good for the planet, too.

Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.