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

Check out this silly game that will put your kid's animal habitat knowledge (and acting skills) to the test.

Do plants breathe? Not exactly. They do respire though! This activity will help your child with see that plants are producing the oxygen we need to survive.

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

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Here's a pressed leaf card project that puts science and writing together for your second grader.

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

The concept of metamorphosis is fascinating to children of all ages. Help your child's creativity take flight as she makes her very own butterfly life cycle.

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!

Here's an easy experiment that lets your first grader practice the scientific method, while watching a caterpillar eat.

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

Teach your child about healthy foods and how to make a meal that is good for them with this fun activity that you both can do together.

Teach your creative second grader about proportions, animals, and proper cutting methods with cucumber carving.

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

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

Get your child math and science savvy with this fun outdoor classification game. Using chalk, your child will classify what she sees in the natural world.

Teach your child about recycling and gardening as she re-uses an empty plastic milk gallon jug to craft a swan-shaped plant container!

Learn how to grow an avocado plant indoors with your 1st grader in this hands-on gardening activity.

This experiment works due to a simple principle: plants need light. Build a shoebox maze and watch the plant work though the obstacle course, searching for sun.

Put your young paleontologist's puzzle-solving skills to the test by having her hunt for dinosaur bones and then assemble them to create dinosaur skeletons.

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

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

Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.

For your budding first grade scientist, all you need is some simple, natural materials to create an amazing ant farm. Here's how to get started.

Introduce your child to the importance of preserving the world's biodiversity by turning a lesson on endangered species into a fun game for the whole family.

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.

Give your local birds a treat — and your young birdwatcher some fun — with this simple DIY bird feeder.

This project can help prepare your child for a trip to the tide pools, or give him a way to remember some of the many creatures he saw during his visit.

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

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