Earth's Formation

The Earth is older than the Solar System

• True

• False

Cloud of gas and dust that forms stars (and solar systems)

• Galaxy

• Constellation

• Nebula

• Pluto

About how much of the mass in our solar system is in the sun?

• 99.9%

• 90.5%

• 50%

• 73.6%

Formation of planets through collisions is known as what?

• Accretion

• Aggregation

• Building

• Nebula

Which name best describes the current theory for the formation of the moon?

• Simultaneous-Formation Theory

• Capture Theory

• Alien Egg Theory

• Giant-Impact Theory

Which of following about the moon is TRUE?

• The moon's makeup is very similar to the Earth's

• The moon is mostly very dense

• Our moon is one of the smallest in the solar system

• It is impossible to see the moon during the day

What brought water to the early Earth

• Asteroids

• Volcanic eruptions on Mars

• Comets

What external event kickstarted the formation of our solar system

• The Big Bang

• A supernova

• A passing black hole

• Earth's appearance

Which of the following is NOT a way to learn about the Earth's past?

• Radiometric dating

• Computer models

• Sedimentary rock records

• Exciomatic Dating