"First Science explains introductory physical science concepts about temperature through real-world observation and simple scientific diagrams. Intended for students in grades three through six"--Provided by publisher.

"First Science explains introductory physical science concepts about sound through real-world observation and simple scientific diagrams. Intended for students in grades three through six"--Provided by publisher.

Publisher Annotation: 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 flowers, then bean pods, as it reaches up toward the sun. Side by side, plant and insect...