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In this activity (p.14-15 of PDF), learners discover the concepts of competition and limiting factors as they relate to plant and animal communities.

In this outdoor, windy day activity, learners "fly" and race leaves along a line to discover which types of leaves catch the most wind. Which leaves are the best fliers? Why?

In this plant science activity, learners role play as vegetables and weeds competing for nutrients.

In this creative outdoor activity, learners invent populations of make-believe organisms and then investigate real populations living in the activity site.

In this activity, learners play a game to simulate the food chain.

In this outdoor activity and bingo-like game, learners explore why and how seeds spread far from the plants that produce them.