The Goldilocks Zone

A delicate balancing act between the Sun and Earth makes ours the only known life-bearing planet in our Solar System. Physics - Our Solar System - Learning Points. Earth is the only planet with liquid water. If a planet is too close to the Sun, water evaporates. If a planet is too far away from the Sun, water is frozen ice. The Sun's size, and Earth's distance from it, is just right for life to exist. A Twig Context Film. Reinforce and extend the learning required by the curriculum. Twig’s context films show abstract concepts in action in the real world.