Introduction to the formation of Solar System

1. Ancient astronomers noticed that the sun and moon had a daily _______.

• routine

• activities

• motion

• events

• predicted flow

Tags

NGSS.MS-ESS1-1

Five starlike objects were identified as _____________ by early astronomers.

• stars

• planets

• Mars

• Earth

• Venus

1. The ________________ model proposed that all celestial objects moved around the Earth.

What did early astronomers base their models of the solar system on?

• The size of the planets

• Observations of the night sky

• The color of the stars

• The temperature of the sun

1. Which model suggests that the Earth is at the center of the universe?
   

• 1. Heliocentric

• 1. Geocentric

• 1. Astronomic

• 1. Universal

1. How many planets did early astronomers notice moving among the stars?
   

• 1. Three

• 1. Four

• 1. Five

• 1. Six

1. What are the circular paths called that the planets were thought to move in?
   

• 1. Orbits

• 1. Circles

• 1. Loops

• 1. Trails

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

What phenomenon did epicycles help to explain?

• The brightness of stars

• The back-and-forth motion of planets

• The color of the planets

• The daily motion of the sun

1. The prefix geo- means ________________

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2

NGSS.MS-ESS3-1

1. Prefix helio- means ________________.

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-ESS2-4