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This great "re-use it" activity will demonstrate how to transform a greeting card into a box. Once constructed, the box can have many uses like holding special notes or keepsakes.

The Chinese invented paper made from plants and cloth about 2,000 years ago. Learners follow a similar process to make paper from recycled paper.

In this activity, reuse two-liter bottles to create bowling pins. Learners practice math skills and develop a concept of verifying answers, while bowling and keeping score.

In this activity, learners collect, categorize, weigh and analyze classroom trash and discuss ways that engineers have helped to reduce solid waste.

In this activity, learners make cool boxes out of old (or new) greeting cards or postcards.

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

Learners shred used paper, add water, and blend it into pulp. They then strain and roll the pulp out to make new paper.