What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.

Use a deck of playing cards to practice place value and other math concepts with your upper elementary child!

This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.

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

This Thanksgiving cornucopia makes a great addition to any dining table because once youâre done looking at it, you can dig in and eat it!

Sick of the same old arts and crafts projects? Try a new kind of art--string art!

How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!

Show your fifth grader how to create a vivid and colorful, Picasso-inspired, 3-D mask.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Create a string of paper jack-o'-lanterns with this simple Halloween paper craft!

Magnets vary in strength. Have your young scientist figure out which kind of magnet is the strongest when you have him conduct this attractive experiment.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

Create a haunted house from upcycled materials in this lively craft project!

This science fair project idea investigates how color affects temperature.

Make Frankenstein bolts for your trick-or-treater this Halloween. These homemade Frankenstein bolts make your child look just like the popular monster.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Is your child missing a friend or family member that's away at college, far from home, or in the hospital? This cute gift box says "Wish you were here!"

This science fair project idea investigates if heat from direct sunlight is hotter than heat from reflected sunlight.

Create tasty and healthy bruschetta the whole family will love and get your child in the kitchen involved in making the food they eat!

Learn about Ikebana, or the Japanese art of flower arranging, with your child while artfully arranging spring flowers!

Kids will create their own version of Richard Feynman's rubber band heat engine to learn about thermodynamics with this cool science fair project idea.

Create a giant octopus from cardboard that holds onto a sea of creatures from its tentacles!

Put old, worn-out picture books to work by constructing a book birdhouse, perfect for welcoming spring.

Cook Halloween pasta on All Hallows' Eve. This green pasta with toothy almonds is a super scary and tasty dinner for trick-or-treaters on Halloween night.

This science fair project examines how seeds hitchhike on animals and clothing.

This science fair project teaches kids experimental design and how to test if subjects can really sense if they are being watched.

Create a piece of public art on a movable wall. This scrap paper mosaic is made on a board that can be displayed just about anywhere.

Make some beautiful and unique candles to light your home.

Here's a fun activity to show your child how to use prefixes and root words to "root out" the meaning of a word!

In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!