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What does relative dating help us understand?

• The temperature of the Earth

• The chemical composition of rocks

• The order of events without specific dates

• The exact age of rocks

Tags

NGSS.MS-ESS1-4

What is the main difference between relative and absolute dating?

• Relative dating uses numbers, absolute dating does not

• Absolute dating uses numbers, relative dating does not

• Neither uses numbers

• Both use numbers to determine age

What is an isotope?

• A type of fossil

• A type of rock

• A form of an element with different numbers of neutrons

• A layer of soil

Tags

NGSS.HS-PS1-8

What does uranium-238 eventually turn into?

• Carbon-14

• Lead-206

• Oxygen-16

• Hydrogen-2

Tags

NGSS.HS-PS1-8

What is the half-life of uranium-238?

• 1 million years

• 4.5 billion years

• 100,000 years

• 50,000 years