The ____ has the sun at its center, and all the planets, moons, and even comets go around it. Sometimes, at night, we can see a bright ____ with a long tail in the sky. Look up at the sky, and you'll see many twinkling ____ James found a ____ in the museum! It is 1000 years old. The ____ we live in is called the Milky Way. The ____ is made up of billions of galaxies. Scientists use ____ to get a closer look at planets, asteroids, and even faraway galaxies. A ____ named Voyager travelled really far from Earth to take pictures of planets in our solar system. At the ____ scientists use big telescopes to study the night sky and learn about different stars and comets. At night, I like to look at the shiny ____ in the sky. I learned about ____ at school, they're like space rocks that go around really fast in space. The ____ of Earth is very, very hot. The moon has a lot of ____ The ____ to the nearest star is a long way. The ____ studied science for a long time. Earth's ____ is 70% water. Earth travels in ____ around the sun. Without ____ people on Earth would float in the air. Many plants and animals live on our planet's ____ The ____ of Mercury is only 4,879 kilometers. A ____ called curiosity went to Mars in 2012. Planet earth is ____ because it has people.

Unit 1 & Unit 2 mixed

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