Team 1
0
Team 2
0
Teams
Name
Score
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Loading
15
×
What is pillow lava?
Pillow-shaped rock found at mid-ocean ridges formed when molten material hardens quickly after erupting underwater
Oops!
Check
Okay!
Check
×
trap
No points!
Oops!
×
magnet
Take 20 points!
Okay!
×
fairy
Take points!
5
10
15
20
25
×
baam
Lose 20 points!
Oops!
15
×
What is subduction?
The process by which part of the ocean floor sinks back into the mantle at a deep-ocean trench
Oops!
Check
Okay!
Check
15
×
How is pillow lava evidence of sea-floor spreading?
It shows that new material is being added at mid-ocean ridges
Oops!
Check
Okay!
Check
15
×
What is a deep-ocean trench?
A deep underwater canyon where subduction occurs
Oops!
Check
Okay!
Check
15
×
Where does subduction occur?
Deep-ocean trenches
Oops!
Check
Okay!
Check
15
×
Why are the oldest parts of the ocean floor only about 200 million years old?
Very old parts of the ocean floor undergo subduction at deep-ocean trenches
Oops!
Check
Okay!
Check
×
seesaw
Swap points!
Oops!
×
shark
Other team loses 15 points!
Okay!
×
gift
Win 25 points!
Okay!
×
banana
Go to last place!
Oops!
15
×
What are mid-ocean ridges?
Long chains of mountains that rise up from the ocean floor
Oops!
Check
Okay!
Check
15
×
What is a convergent boundary?
A boundary where plates come together
Oops!
Check
Okay!
Check
15
×
What did Wegener's hypothesis state?
All continents were once joined together in a single landmass that has since drifted apart
Oops!
Check
Okay!
Check
15
×
What is continental drift?
The idea that the continents slowly move over Earth's surface
Oops!
Check
Okay!
Check
15
×
What is a rift valley?
A land formation that occurs when two plates diverge on land
Oops!
Check
Okay!
Check
15
×
What is a transform boundary?
A boundary where plates slip past each other
Oops!
Check
Okay!
Check
×
monster
Reset all scores!
Oops!
×
gift
Win 5 points!
Okay!
×
gift
Win 10 points!
Okay!
×
lifesaver
Give 10 points!
Oops!
×
seesaw
Swap points!
Oops!
×
star
Double points!
Okay!
×
rocket
Go to first place!
Okay!
×
thief
Give points!
5
10
15
20
25
×
Restart
Review
Join for Free
;
Your experience on this site will be improved by allowing cookies.
Allow cookies