7E6.5 Earth's Layers and More

What percentage of Earth's surface is covered by water?

• 71%

• 29%

• 50%

• 97%

Tags

NGSS.MS-ESS2-4

How was Earth formed 4.6 billion years ago?

• From a giant, dirty gas cloud

• From a collision of two planets

• From a black hole

• From a supernova explosion

Tags

NGSS.HS-ESS1-6

What event led to the formation of the Moon?

• A giant object collided with Earth

• Earth captured a passing asteroid

• The Moon formed alongside Earth

• A volcanic eruption on Earth

What is the process called that moves Earth's crust and creates mountains and trenches?

• Volcanism

• Sedimentation

• Plate Tectonics

• Erosion

Tags

NGSS.MS-ESS2-3

What is the name of the upper part of the mantle that carries the crust?

• Exosphere

• Mesosphere

• Lithosphere

• Asthenosphere

What is the main composition of Earth's outer core?

• Silicate rocks

• Carbon and oxygen

• Hydrogen and helium

• Iron and nickel

What phenomenon protects Earth from high energy particles from the Sun?

• Earth's magnetic field

• The ozone layer

• The atmosphere

• The ionosphere

Which layer of the atmosphere is where the weather occurs?

• Stratosphere

• Mesosphere

• Troposphere

• Thermosphere

Tags

NGSS.MS-ESS2-5

At what altitude does space officially begin?

• 50 kilometers

• 100 kilometers

• 80 kilometers

• 150 kilometers

How long have humans in their present form been around?

• 200,000 years

• 2 million years

• 20,000 years

• 2 billion years