SES1.a Earths and Its Systems

SES1.a Earths and Its Systems

I can explain the differences of Earth's early systems including the geosphere, hydrosphere, and atmosphere. (Knowledge)

Multiple Choice

How old is our solar system?

• 4.6 billion years
• 13.8 billion years
• 6,000 years
• 15,000 years

Multiple Choice

How old is the moon?

• 100 years

• 5.4 billion years

• 4.5 billion years

• 10 billion years

Multiple Choice

What do many astronomers think caused the formation of the Moon?

• An asteroid

• A comet

• The sun

• A volcanic eruption

Multiple Choice

When the inner planets (and moons) were bombarded by asteroids, what did the asteroids leave behind?

• craters
• calderas
• mountains
• valleys

Multiple Choice

Early Earth was intensely hot because of 

• short-lived radioactive decay
• intense bombardment from asteriod impacts
• contraction of materials due to gravity
• all of these

Multiple Choice

_________________ occurred as Earth formed, causing distinct layers.

• outgassing
• accretedation
• differentiation
• polymerization

Multiple Choice

Earth seperated into layers based on

• gravity
• metallicity
• the tendency for material to recycle
• density

Multiple Choice

The densest part of the plant Earth is the

• core
• mantle
• continental crust
• oceanic crus

Multiple Choice

Gases in the first atmosphere came from

• asteriod impacts
• comet impacts
• volcanic outgassing
• all of these

Multiple Choice

Which of the following is not an important part of Earth's second atmosphere?

• Helium
• Oxygen
• Water Vapor
• Carbon Dioxide

Multiple Choice

After water vapor condensed to form rain and then gradually accumulated, which of the following was formed?

• Earth's First Atmosphere
• Earth's Second Atmosphere
• Earth's Oceans
• Earth's Continents

Multiple Choice

The earliest form of life known on Earth was...

• Leafy Plants
• Bacteria
• Fossils
• Single-Celled Organisms