WorksheetsEarth Space Ch. 6
Total questions: 12
Worksheet time: 24mins
Why is the ocean blue?
God likes blue.
All other colors are allowed to pass through, but blue is eventually absorbed.
Blue light is allowed to pass through, but all other colors are eventually absorbed.
Light travels through the water and makes it blue.
Define crest:
gentle, rolling wave that may appear even during calm weather
highest point of a wave
circular path in which surface currents move
describes water in which waves are different sizes and move in various directions
What is the approximate percentage of Earth's surface covered by oceans?
60%
70%
80%
90%
Would melted sea ice or a melted iceberg taste like salt water?
Yes, because ice contains salt.
Yes; when seawater freezes, the salt stays.
No; when seawater freezes, the salt is left behind.
No, ice doesn't contain salt.
What is a sandy, gently sloping underwater plain that borders the coasts of the continents.
continental shelf
shelf break
continental slope
continental rise
Name the three primary types of water movement in the oceans:
spring tide, shelf break, neap tide
rift, trench, gyre
crest, trough, period
currents, waves, tides
What is the percentage of tsunamis caused by strong earthquakes?
60%
70%
80%
90%
What is a narrow column of sediment removed from the ocean floor?
rift
core
period
crest
What is the term for an underwater volcanic mountain?
tsunami
abyssal plain
seamount
submarine canyon
Why do high and low tides occur?
the pull of the moon's gravity
from rhythmic back-and-forth motion that transfers energy
the pull of the sun's gravity
from underwater volcanic mountains
What is hadal zone?
area of sea that exceeds 5000 m. in depth
area of sea that exceeds 6000 m. in depth
area of sea that exceeds 7000 m. in depth
area of sea that exceeds 8000 m. in depth
What is the term for a device with an open tube that is dropped to the sea floor, allowing it's weight to puncture the sediment?
self-contained breathing apparatus
piston corer
drift bottle
gravity corer
