Solar System and Earth

How old is the Earth approximately?

• 4.5 billion years

• 6.5 billion years

• 5.5 billion years

• 3.5 billion years

Tags

NGSS.MS-ESS1-4

What is at the heart of the Earth?

• A liquid inner core

• A solid inner core

• A gaseous inner core

• A mantle full of lava

What is the average distance of Earth from the sun?

• 103 million miles

• 113 million miles

• 93 million miles

• 83 million miles

Tags

NGSS.MS-ESS1-3

What allows Earth to house phenomena yet to be found anywhere else in the universe?

• Its size

• Its unique position in the solar system

• Its atmosphere

• Its magnetic field

What forms the mantle of the Earth?

• Flowing silicate rocks

• Solid iron

• Liquid water

• Gaseous hydrogen

How old is much of Earth's water according to one theory?

• As old as its rocks

• As old as the atmosphere

• As old as the sun

• As old as the moon

What is the only known place in the universe with liquid water on the surface?

• Mars

• Venus

• Earth

• Jupiter

When did primitive life exist in Earth's oceans?

• 5.8 billion years ago

• 2.8 billion years ago

• 3.8 billion years ago

• 4.8 billion years ago

Tags

NGSS.MS-LS4-1

How many species have been cataloged on Earth?

• 4.5 million

• 3.5 million

• 2.5 million

• 1.5 million

What fuels Earth's unique global ecosystem?

• Sunlight

• Water

• Soil

• Air

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3