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5
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200 million years ago, most of the land on Earth was part of a single continent. What was it called?
Pangaea
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20
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How does pollen help scientists study ancient climates?
They can look at pollen to determine what kind of plants lived in a location.
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25
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What principle do scientists follow in studying ancient climates?
If plants or animals today need certain conditions to live, then similar plants and animals in the past also required those conditions.
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seesaw
Swap points!
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shark
Other team loses 10 points!
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gift
Win 20 points!
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banana
Go to last place!
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15
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How does Earth's surface change during an ice age?
It becomes covered in glaciers.
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10
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If a continent moves towards the equator, how does its climate change?
It gets warmer.
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10
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When Earth's orbit is more elliptical, does it get more or less sunlight during the year?
Less
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15
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How many major ice ages were there in the last two million years?
About 20
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baam
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star
Double points!
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fairy
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lifesaver
Give 25 points!
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10
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What are three types of evidence scientists examine to study ancient climates?
Pollen, Tree Rings, and Ice Cores
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5
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True or false: Volcanic eruptions release aerosols.
True
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25
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What information can scientists get from tree rings?
Wide rings indicate a good growing season that was long or wet. Narrow rings indicate a dry year or a short growing season.
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True or false: Ice cores have a layer of ice for each year, just like tree rings.
True
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15
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What is an aerosol?
Solid particles or liquid drops in gas
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True or false: The amount of energy given off by the sun changes over a regular 15 year cycle.
False, 11 years.
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heart
Other team wins 25 points!
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gold
Win 50 points!
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rocket
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thief
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