Intro to Earth

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

• 30%

• 50%

• 70%

• 90%

Tags

NGSS.MS-ESS2-4

What is the composition of Earth's atmosphere?

• Nitrogen and oxygen

• Carbon dioxide and oxygen

• Helium and hydrogen

• Methane and nitrogen

What makes Earth unique among the planets in our solar system?

• It has a solid and active surface

• It has a thick atmosphere

• It has a large number of moons

• It has the perfect temperature for life

How long does a day on Earth last?

• 12 hours

• 24 hours

• 36 hours

• 48 hours

How long does a year on Earth last?

• 100 days

• 200 days

• 365 days

• 400 days

Tags

NGSS.MS-ESS1-1

How many moons does Earth have?

• 0

• 1

• 2

• 3

Tags

NGSS.MS-ESS1-1

Which planet is closest to Earth?

• Mercury

• Venus

• Mars

• Jupiter

What is the largest ocean on Earth?

• Atlantic Ocean

• Indian Ocean

• Pacific Ocean

• Arctic Ocean

What is the Earth's core made of?

• Iron and Nickel

• Granite and Basalt

• Carbon and Oxygen

• Hydrogen and Helium

What is the outermost layer of the Earth called?

• Mantle

• Crust

• Core

• Lithosphere