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4.05 Impact Crater Lab MOD

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Last updated about 2 hours ago
23 questions
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Question 9
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What influences the characteristics of impact craters on the surface of the Earth and other objects in the Solar System?

There is no right or wrong answer, I just want to know what you think!

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Question 18
18.
Sum it all up:

The deepest impact craters are created by __________, __________, and__________ objects.

Objects that strike at an angle will produce __________.
Question 19
19.

Impact craters can provide clues about the past.

The Principle of Superposition states:
  • The order of layers of geologic features found on the surface information about which features are older or younger.
  • Features found on top are the youngest.

If a crater is found on the floor of or overlapping the rim of another crater, it must be younger. The crater on the bottom must have been there first, making it older.

Which crater in the image is younger? (Click one)

Question 20
20.

Crater density, or the number of craters in areas of equal size, can help determine the age of the surface.

The more craters on the surface, the older that surface is.

Which surface in the image is likely to be older? (Click one)

Question 21
21.

Over time, craters can be modified by geologic processes. The more modified a crater, the older it is. Craters generally flatten and lose shape with age.

Which crater in the image below is the oldest? (Click one)

Question 22
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Question 23
23.

Give one short reason (1 sentence) why you chose that surface in the previous question.

Optional and just for fun: Play with the Asteroid Launcher website.

Also check out some cool impact craters on Earth.

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A scientist is trying to determine the relative ages of two nearby planetary surfaces.

Surface A has very deep craters with sharp edges and lots of ejecta, while Surface B has many shallow, worn craters and a smooth layer of lava covering parts of it.

Which surface is younger?
Surface A
Surface B
What created this geological feature in the photo?

No right or wrong answer, just want to know what you think!
Meteor
Meteorite
Asteroid
Comet
Why didn't the chunks between Mars and Jupiter form a planet?
They were too small to attract each other
Jupiter's gravity prevented them from clumping together
The Sun's heat vaporized them
Meteorite
Big space rock
Meteor
Small space rock
Asteroid
Space rock that enters Earth's atmosphere
Meteroid
Space rock that makes it to the surface of the Earth
What makes some meteorites dense, dark, and magnetic?
High water content
Large amounts of iron
Carbon-rich composition
Which region does the dwarf planet Pluto belong to?
Oort cloud
Asteroid belt
Kuiper belt
What can cause icy objects from the Kuiper Belt or Oort Cloud to become comets?
Solar wind turning them into gas
Melting by Earth’s atmosphere
Being bumped off course by collisions or gravitational interactions
How do comet tails form when comets approach the Sun?
The comet’s core explodes and ejects dust
The comet picks up dust from planets
Solar heat warms the icy surface, causing gas and dust to stream out and form tails
According to the video, what role might comets and asteroids have played for early Earth?
They created Earth's atmosphere through collisions
They may have brought water and the ingredients of life to Earth
They made Earth move closer to the Sun
Predict: Which object will create a deeper impact crater?
Marble
Golf ball
Size: which object made a deeper impact crater?
Marble
Golf ball
Predict: which object will create a deeper impact crater?
Ping pong ball
Golf ball
Density: which object made a deeper impact crater?
Ping pong ball
Golf ball
Predict: which velocity (speed) will make a deeper impact crater?
Low velocity
High velocity
Velocity: which velocity (speed) made a deeper impact crater?
Low velocity
High velocity
Predict: How does an angled impact affect the amount of ejecta (debris or thrown-out material) produced?
Increased ejecta
Decreased ejecta
Angle: How does the angled impact affect the amount of ejecta (debris or thrown-out material) produced?
Increased ejecta
Decreased ejecta