5.2.6 Across the Universe

What do you remember from the text? Choose the correct answer.

  1. What is the largest star in our galaxy?

  2. How many planets make up our solar system?

  3. There are two main categories of planets in our solar system. What are they called?

  4. Who was the first to conceive the idea that the planets in our solar system orbit the sun?

  5. When did man first set foot on the moon?

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