Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!

Kids will enjoy this cool demonstration of Newton's Third Law and the conservation of linear momentum.

In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.

Explore Pilgrim foodways with three heritage cornbread recipes.

Here are 3 inexpensive ways for kids to make their own beads, from scratch.

Act out the Three Billy Goats Gruff with this adorable paper plate mask.

Study the impact of environment on seed germination among three materials: soil, paper towel, and cloth. Note when seeds germinate and how well they germinate

Flowers will brighten up anyone's day! Share the joy of spring by making a picture of a vase with fun 3-D flowers that will never wilt.

Help your second grader understand compound words by doing this fast, goofy three legged race.

In this arts and crafts activity, you and your child will create colorful three-dimensional artwork using scrunched-up fabric pieces.

This project examines whether humans can intuitively grasp numeric values greater than three.

Here are three activities you can do at home and around town to bring algebra into your daily lives.

The special people in your life deserve a special card! Have your kid make a 3-D flower card that will let a loved ones know how much he appreciates them.

Banish your third grader's rainy day boredom by guiding his play group through a collaborative art project that leads up to the unveiling of a crazy creature!

In this triptych, 3 piece panel artwork, your child will represent an apple in three different ways. What will he discover about how he looks at the world?

Store seeds under three different environmental conditions. Plant seeds in carefully marked groups, watch them grow. Compare results.

This project compares the strength of one, two, and three-ply toilet paper.

Practice math and measurement with your third grader this Fourth of July by making these festive cupcakes!

This year, celebrate Father's Day with three hilarious outdoor family games.

Create homemade seed packets with your kids. This activity combines your kids' love of science and the outdoors with a little writing and drawing fun.

Most often, a collage is 2-dimensional, but instead of using paper as a base, this project uses an inexpensive pumpkin from the craft store.

Practice multiplication facts by playing baseball in this fun, third grade math board game.

Try this fun math card game with your third grader to practice division, addition, and problem solving!

Liven up your sixth grader's study of world geography with these three fun challenges.

Instead of piling on jackets and mittens, settle down for an afternoon of paper magic with this three-dimensional snowflake craft.

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

This game turns prediction, a major component of third grade reading, into a fun game.

In this high energy, interactive game, third graders are challenged to race, involving spelling patterns in words.

In this investigation, three different juices are tested to determine which juice contains the greatest amount of vitamin C.