Module 7 Test - Earth and Space

1. a collection of billions of stars, dust and gas that is held together by gravity

• apparent motion
• galaxy
• planet

2. a large, round object in space that orbits a star

• apparent motion
• galaxy
• planet

3. when a star or other object in the sky seems to move even though it is Earth that is moving

• apparent motion
• galaxy
• planet

4. an object in space that produces its own energy, including heat and light

• planet
• light-year
• star

5. the distance light travels in a year

• constellation
• light-year
• star

6. any of the patterns of stars that can be seen in the night sky from here on Earth

• constellation
• light-year
• star

7. Which of the following stars would appear brightest from Earth?

• A
• B
• C
• D

8. Why is our sun appear brighter than all other stars in the galaxy?

• Our sun is the biggest star
• Our sun is the closest to Earth
• Our sun is a blue dwarf and is hotter than all other stars

9. __________ are spheres of hot gas that give off heat and light.

• Planets
• 4.3 light-years
• Stars

10. Larger, round objects in space that orbit a star are called _________________.

• constellations
• planets