Earth - A planet in our solar system. It's a big, rocky ball that we live on., Moon - A natural satellite that orbits around the Earth. It's a rocky ball, too, but smaller than Earth., Sun - A huge, hot ball of gas that gives off light and heat. It's at the center of our solar system., Orbit - The path that planets, moons, and other objects take as they go around something else. For example, the Moon orbits around the Earth., Rotate - When something spins around its own center. Earth rotates, making day and night., Gravity - A force that pulls objects toward each other. It's what keeps us on Earth and makes things fall down., Air Resistance - The force that pushes against things when they move through the air. It's like the wind trying to slow things down., Solar System - Made up of the Sun, planets, moons, and other objects that orbit around the Sun. Our Earth is one of the planets in the solar system., Milky Way - A huge collection of stars, and our solar system is a part of it. It's like a big city of stars in space.,

Astronomy

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