This science experiment tests whether warm or cold water works best in making cut flowers last longer.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project teaches students the differences between fruits and vegetables.

This experiment has students record rat behavior to learn about the benefits of rats and research rat myths throughout history.

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

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.

This science fair project idea determines if the size of the parachute will change the rate at which an object falls.

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

This science fair project teaches students about wilting and browning of salad greens.

Let your second grader pay homage to an ancient Olympic tradition with this modern day Olympic wreath!

This fun experiment provides a concrete and visually striking illustration of photosynthesis.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Make a wish upon a tree with this craft that also helps your child learn more about Chinese culture.

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

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.

Using scherenschnitte, your science-savvy second grader will be able to create and display each part of a vegetable!

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

This weather spinner will improve observation skills by encouraging children to examine and track weather details and patterns.

Create a mini plant habitat with your kid to help teach him what it takes to make an ecosystem work.

This activity provides a solution to all those leaves on your doorstep, while also giving your child a fun science lesson.

Your child might have noticed how bubbles quickly lose their colors and pop. Check out this creative way to make those bubbles last longer.

Using a toy race car kids create a visual model of the Doppler Effect.

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!