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Name: ___________________________________
Date: ___________________________________
Date: ___________________________________
Mock Test
Match the vocab word to the definition.
- 1. exoplanet
- 2. comet
- 3. star
- 4. nebula
- a. sphere of gas massive enough to generate light and heat through nuclear reactions that transform hydrogen to helium in its core
- b. small icy body that partially evaporates as it approaches the sun; composed gas and dust
- c. a planet that orbits a star outside the solar system
- d. a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter
Name: ___________________________________
Date: ___________________________________
Date: ___________________________________
Mock Test (Answer Key)
Match the vocab word to the definition.
- c 1. exoplanet
- b 2. comet
- a 3. star
- d 4. nebula
- a. sphere of gas massive enough to generate light and heat through nuclear reactions that transform hydrogen to helium in its core
- b. small icy body that partially evaporates as it approaches the sun; composed gas and dust
- c. a planet that orbits a star outside the solar system
- d. a cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against other luminous matter
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