Observe the ways plants and insects interact in a gentle introduction to growing for budding scientists. What's that wedged in a crack in the ground, small and hard and wrinkly and brown? A bean seed Soon it develops roots and leaves. And what's that on the leaf? An egg The egg hatches a caterpillar, and the caterpillar eats the leaves, getting bigger and bigger until it forms a chrysalis. Meanwhile, the plant is growing, too: it develops...