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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 laboratory activity, learners design an experiment to evaluate how environmental factors influence the growth of molds.

This activity (located on page 3 of the PDF under GPS: Temperate Rain Forest Activity) is a full inquiry investigation into tree growth rates.

In this graphing activity (on pages 33-40), learners investigate how much and what kinds of food sea otter pups eat during their first year of life.

In this indepth hands-on activity, learners build a structure that allows them to observe the growth of roots and the correlation between root growth and stem extension.