Earth's History

Which process would be most effective in determining the age of fossils embedded in rock?

• relative dating

• absolute dating

• use of index fossils

• use of core sampling

Tags

NGSS.MS-ESS1-4

In general, planets that have a greater number of craters on their surface are:

• younger.
• bigger.
• older.
• more dense.

One major difference between the Earth and the Moon is:

• the Earth does not have an atmosphere.
• The Earth is much smaller than the Moon.
• The Moon is much older than the Earth.
• The Moon does not have plate tectonics.

Scientists are able to determine how the Earth formed by:

• radioactive dating of meteorites.
• analyzing craters on the Earth and Moon.
• studying the size an composition of other planets.
• all of the above.

Tags

NGSS.HS-ESS1-6

Earth does not have nearly as many craters as the Moon because:

• the Moon protected the Earth from many asteroid impacts.
• the Earth's magnetic field deflects incoming asteroids.
• many of the Earth's craters have eroded away.
• the Earth isn't as old as the Moon.

The amount of time it takes for 50% of a sample of a radioactive element to decay is called its:

• decay rate.
• half-life.
• half-blood.
• lifespan.

Tags

NGSS.HS-PS1-8

When an unstable element like uranium turns into a more stable element like thorium, it is called:

• plate tectonics.
• erosion.
• a supernova.
• radioactive decay.

Tags

NGSS.HS-PS1-8

Based on current scientific evidence, how old is the Earth?

• 6,000 years old
• 460 million years old
• 4.6 billion years old
• 46 billion years old

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS1-6

The amount of a radioactive element in a rock sample:

• decreases at a predictable rate.
• will never increase.
• can be used to find the absolute age of the rock.
• all of the above.

In the earliest stages of Earth's development, our planet was made of what?

• Cotton Candy

• Molten rock

• Molten rock with a thin, hard crust

• Water