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

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

Experiment about connection of senses of taste and smell. Using blindfold and noseplugs, administer blind taste test. Analyze results and organize data.

This cool and easy elementary school science fair project idea provides the basic information on the use of our senses to experience the world about us.

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

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

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

Here's a fun activity that will have your child researching, collecting, and charting plant specimens from the neighborhood.

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

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

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

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

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

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

Create a soda bottle garden that defies gravity! This hanging terrarium is housed in a soda bottle and perfect for crafty kids with a growing green thumb.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

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.

This taste buds science experiment demonstrates how strongly our sense of smell controls what we taste.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

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

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.

Incorporate some math and science thinking into your annual fall fun with this pumpkin investigation activity! Your child will have a blast investigating various ways of measuring pumpkins, making estimates, taking measurements, and recording their findin

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

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

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

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

Want to help make studying the nervous system a little more fun? This thinking cap is a great way to learn external human brain anatomy.

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

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