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

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.

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.

Help your child create a magical miniature garden in the most unlikely of places: a recycled plastic bottle!

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

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

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.

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

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!

With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.

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.

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.

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