Early Earth

How much of Earth's history is part of the Precambrian?

• 50 percent

• 90 percent

• 10 percent

Tags

NGSS.MS-ESS1-4

Evidence that Earth is older than 4.28 billion years is contained in small grains of the mineral _____________

• Silicon

• Carbon

• Zircon

Tags

NGSS.HS-ESS1-6

What is a stable and common mineral that can survive erosion and metamorphism, and is often used by scientists to age-date ancient rocks?

• calcite

• zircon

• quartz

______________ are small fragments of orbiting bodies that have fallen on Earth's surface.

• Comets

• Meteorites

• Asteroids

What evidence indicates that Earth is about 4.6 billion years old?

• stromatolites

• silicon grains

• Moon rocks

Tags

NGSS.HS-ESS1-6

Radiometric dating of small grains of the mineral zircon, found in rocks of Precambrian age in Australia, indicate that Earth is at least ______ billion years old.

• 2.48

• 3.08

• 4.28

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS1-6

_____________ caused early Earth to squeeze together with so much force that the pressure raised Earth's internal temperature.

• Volcanoes

• Gravity

• Asteroids

Tags

NGSS.MS-PS2-4

What are small fragments of orbiting bodies that have fallen on Earth's surface?

• meteorites

• comets

• planets

Carbon or mineral-rich objects between 1 m and 950 km in diameter are called

• comets

• asteroids

• meteors

Select all that apply.

What evidence have scientists studied that suggests Earth is about 4.6 billion years old?

• ice cores

• meteorites

• Moon rocks

Tags

NGSS.HS-ESS1-6