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In this activity learners will build a neighborhood out of blocks and cardboard.

In this activity (on pages 55-66 of PDF), learners fold paper into origami shapes and then combine several identical shapes into a three-dimensional structure.

In this activity, learners explore the human influences on the carbon cycle and examine how fossil fuels release carbon.

In this engineering design activity, learners will design, test, and build a “haunting machine” to solve a Sherlockian mystery.

In this activity, learners build a carousel toy that spins when pushed down.

In this fun and imaginative writing assignment (page nine of the pdf), students will flex the creative side of their brains to learn more about the laws of motion and the scientific process.

In this activity, learners use recycled materials to build a bridge that holds as many potatoes as possible. They investigate weight, height, strength, and measurement as they seek design solutions.

In this design challenge, learners design a storm drain cover that catches litter to protect waterways to learn about how local actions can have system-level effects.

In ancient Chaco Canyon, the people used a "sun dagger" petroglyph to mark the passing of seasons.

Make a kite out of a garbage bag, shower curtain, painting tarp--anything light, thin, flexible and plastic!

Learners examine the manufacturing process while they make picture frames from cereal boxes.

Students design and build their own parachutes in this hands-on engineering project.

Have you ever heard of a camera without a lens? In this activity, learners create a pinhole camera out of simple materials. They'll see the world in a whole new way: upside down and backwards!

Learners design and create musical instruments from common objects; their challenge is to create an instrument that can make three different tones.

This outdoor activity/field trip requires a place where minnows swim, such as a local pond or brook.

In this activity, learners explore dinosaur skeletons, anatomy, and locomotion. Learners compare and contrast dinosaur skeletons and drawings.

In this activity, learners will build the highest tower they can out of recycled materials.

In this activity, learners explore the size and scale of dinosaurs. Learners listen to "Dinosaurs, Dinosaurs" by Byron Barton to understand some background information about dinosaurs.

In this outdoor activity and game, learners explore how animals adapt for survival through coloration, markings and camouflage.

This lesson (on pages 46-55 of PDF) features two strategy board games -- one from Ghana and one from China. The first game, Achi, is a cross between checkers and tic-tac-toe.