This unit we are going to study the amazing Solar System. You already know the name of the eight planets in Spanish, but now it's time to learn them in English. The following video will help you:
Every planet in the Solar System moves in two ways: rotation and revolution.
- The Earth's movement on its axis is called rotation and it causes day and night.
- The Earth's movement aroun the Sun is named revolution and it causes the four seasons.
The Moon also moves on its axis (rotation) and around our planet (revolution). As consequence, the Moon changes its shape (phases of the Moon).
The Earth has different layers: the core, the mantle, and the crust.
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