Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

In this free science fair project, build a star clock and learn how to tell time on a clear night by observing the big dipper!

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!

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.

Your child will create her own falling snowflakes using white paper and glue them over a tree, so it appears as if they are falling from the sky.

Enjoy those warm spring and summer nights with your child while teaching some basic astronomy at the same time.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Try this simple 2nd grade science experiment to teach your child about the principles of luminosity and light reflection.

Help your child celebrate the summer and the sun by making a sandy seascape.

Make a spring collage with your child to get them outside and those creative juices flowing!

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Is your little scientist up for a rocky challenge? Let them make their own geode rocks using eggs and epsom salts!

This year on Mother's Day, try this gift project that brings together an appreciation for gardening with a hands-on lesson in art history.

In this activity, your child will be challenged to build a tall tower out of building bricks! The instructions include questions prompts to guide students through the design challenge.

This science experiment has students test whether a snail moves faster on concrete or dirt.

Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!

Science fair project that examines condensation and the conditions needed in order for dew to form.

Find out whether a longer airplane will fly farther or a wider paper airplane.

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!

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.

How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.

What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.

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!

Learners hypothesize about and experiment with soil erosion in this hands-on activity.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.