Universe

What keeps the planets in orbit?

• mass
• gravity
• volume
• density

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

According to astronomers, how was our solar system formed?

• red shift
• expansion
• big bang theory
• Hubble Telescope

collection of dust, gas, billions of stars, and dark matter

• universe
• solar system
• star
• galaxy

how far is the sun from the enter of the galaxy?

• 28 light years
• 2,800 light years
• 28,000 light years
• 280,000 light years

how far is the sun (solar system) away from the center bulge?

• 1/2 away
• 1/3 away
• 3/3 away
• 2/3 way

what part of the universe is the most dense and contains most of the stars 

• center bulge
• left side
• right side
• universe is the same dense throughout

what part of the universe has the oldest stars?

• center bulge
• right side
• left side
• the stars are all the same age

Which scientist use his telescope to help discover that the universe is expanding?

• Issac Newton
• Nicolaus Coppernicus
• Edwin Hubble
• Galileo Galilei

which of the below is the youngest and the smallest?

• universe
• galaxy
• solar system
• star

which of the below is the largest and the oldest?

• universe
• galaxy
• solar system
• star