Develop your child's green thumb with this easy planting activity. These plants are guaranteed to grow fast and are "brown-thumb" proofed!

Determine if âdouble dippingâ chips really spreads more germs than dipping only once per chip.

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!

Fudge is one of very few desserts people make at home that is actually crystalline. What happens when the fudge crystallizes at different temperatures?

Help your kids fall in love with nature by making a simple clay bird bath. Set it up in your yard and watch the animals venture in for a sip of water.

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

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

Before digital cameras, before Polaroids, there was the original pinhole camera. Build a pinhole camera and see what true vintage photography looks like!

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old “why” questions. As you walk with your child, you can encourage them to ask questions.

This educated-guessing game is great for preschoolers. This activity helps your child work on her reasoning skills.

In this design challenge, your child will make a bottle rocket using typical household items.

Looking for a way to help your teen explore the fun side of physics? How about a round of Saturday morning cartoons?

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

Observe corn seed germination to learn about dicots and monocots and how plants grow from seeds to seedlings to full-grown plants!

This project involves the programming and development of a 3D Rubik's Cube application using C++.

With this cool floating rocks project, your child will get some hands-on experience with buoyancy and learn why certain rocks like pumice are able to float.

Bake some cookies with an oven that collects sunlight and traps the shorter wavelengths (heat!).

You've heard all about oil spills, but can they really be that bad? After all, vegetable oil is in almost every yummy baking good from cookies to brownies.

Test your friends to find out if you can replicate the placebo effect's incredible results.

The buoyant force of water explains why some objects float in water. But why do some objects sink? Find out in this physics experiment and learn about density.

Word color association is just a fancy way to talk about the way we connect colors with words.

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.

In this physics project, you'll learn how to find the maximum height of a projectile using some math and trigonometry.

Investigate the kinds of memories we tend to store and the emotions we store with them. Determine if memories have a strong emotional component.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

Here's a guide to starting a community clean-up project from scratch.