Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.

Spiders don't go to grocery stores or fast food chains to get their food -- they set up traps and wait for their food to come to them!

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

Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.

The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

In this project students experiment with making music using only glasses of water.

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

In this activity your child will create their very own marble maze!

Make a DIY golf putter and design your own golf putting course in this 2nd-3rd grade arts and crafts/game activity.

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Learn to solve a crime scene investigation using an important forensics tool: oblique lighting.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

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

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

Encourage a group of third graders to play this fun game of Whistle Hide-and-Seek as a warm-up to get them prepared for finding a "lost" camper.

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.

Engineers in training can get started with this simple wheel-and-axle construction activity.

This science fair project idea's objective is to understand the concept of air pollution and examine the quality of air in our environments.

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.

Celebrate April Fools' Day with a science prank that is sure to amuse...and educate too!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

Help your child create a tasty treat that will demonstrate exactly how frogs survive a freezing season.

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

The project investigates how friction affects motion by using different surface textures.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

This science fair project idea investigates how magnetism can defy the force of gravity.

In this activity, your child will be challenged to create a device that protects an egg when it is dropped from a height of about 10 feet.