Earth can also be considered a spaceship, as it has everything on board needed for survival--water, food, and air with oxygen. Unlike a space shuttle, Earth never runs out of its resources. Read and find out why Earth is the greatest spaceship to be aboard!
Explains the concept of a food chain and how plants, animals, and humans are ecologically linked
Describes the physical characteristics of a variety of snake and how they hunt, catch, and eat their prey