When Earth's orbit becomes more elliptical (oval shaped), it gets less direct light which causes an ice age.
Oops!
Check
Okay!
Check
15
What are possible explanations for major climate changes?
Movement of the continents, variations in the position of Earth relative to the sun, major volcanic eruptions, and changes in the sun's energy output
Oops!
Check
Okay!
Check
15
How do scientists use ice cores to study ancient climates?
By drilling into ice, scientists can look at the layers of ice. The ice may contain things like pollen and dust.
Oops!
Check
Okay!
Check
15
How do movements of the continents affect climate?
A location that moves toward the equator gets warmer, and one that moves away gets colder. Movement of continents changes wind and ocean currents as well.
Oops!
Check
Okay!
Check
banana
Go to last place!
Oops!
star
Double points!
Okay!
rocket
Go to first place!
Okay!
banana
Go to last place!
Oops!
15
How do scientists use tree rings to study ancient climates?
Trees add a new ring each year. Thicker rings indicate a good growing season that was long or wet. Narrow rings indicate a dry year or short growing season.
Oops!
Check
Okay!
Check
15
What are aerosols?
Solid particles or liquid drops in gas
Oops!
Check
Okay!
Check
baam
Lose 20 points!
Oops!
magnet
Take 25 points!
Okay!
gift
Win 25 points!
Okay!
thief
Give points!
5
10
15
20
25
15
How do scientists use pollen to study ancient climates?
They look at pollen that has accumulated at the bottom of lakes to find out what kinds of plants lived in an area
Oops!
Check
Okay!
Check
15
How can solar energy affect climate?
When the sun gives off less solar energy, Earth's climates cool
Oops!
Check
Okay!
Check
trap
No points!
Oops!
magnet
Take 15 points!
Okay!
shark
Other team loses 25 points!
Okay!
banana
Go to last place!
Oops!
15
What are three pieces of evidence scientists look at to study ancient climates?
Pollen, tree rings, ice cores, fossils
Oops!
Check
Okay!
Check
15
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
Oops!
Check
Okay!
Check
15
What is a sunspot?
A dark, cooler region on the surface of the sun
Oops!
Check
Okay!
Check
15
What covered large parts of Earth's surface during ice ages?