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In this activity, learners will be working with predictions with a time frame of one week, or longer. Start by planting seedlings.

In this online interactive, learners use fossils to infer temperatures 55 million years ago, at the sites where the fossils were found.

In this activity, learners will explore how different bird beaks work and discover what birds can eat based on their beak shape.

Put math of measurement into lining up — and make waiting in line fun. Choose a size characteristic that learners can physically compare, such as foot length or hair length.