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In this outdoor activity, learners dig for and collect isopods (sometimes known as "roly-poly bugs" or "potato bugs" and other names).

In this activity about problem-solving, learners build a house for the Three Little Pigs using twenty straws and two index cards.

In this outdoor activity, learners make models of homes that might protect small animals from the elements, then search living plants for real structures made by small animals.

In this activity, learners explore the concepts of structural engineering and how to measure the critical load, or the maximum weight a structure can bear.

In this hands-on activity, learners investigate the functional design of leaves on a tree.

In this activity, learners create an origami model of DNA, demonstrating its double helix structure.

In this activity (page 4), learners work in groups to plan and build large structures using recyclable materials they have brought from home.

This is a quick activity (on page 2 of the PDF under Hockey Sticks Activity) about how the arrangement of carbon atoms determines carbon's different properties.

In this hands-on nature activity, learners observe the emergence of leaves and flowers. Branches from trees and bushes are collected in the early spring, brought indoors, and placed in water.