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Q 1/63
Score 0
A graph relating the temperature and brightness of stars
300
HR diagram
Q 2/63
Score 0
the true brightness of an object
30
Luminosity
63 questions
Q.
A graph relating the temperature and brightness of stars
1
300 sec
Q.
the true brightness of an object
2
30 sec
Q.
A large cloud of dust and gas in space
3
30 sec
Q.
A collection of stars, dust, and gas bound together by gravity
4
30 sec
Q.
All of space and everything in it
5
30 sec
Q.
the range of wavelengths or frequencies over which electromagnetic radiation extends.
6
30 sec
Q.
The distance between two corresponding parts of a wave
7
30 sec
Q.
top of wave
8
30 sec
Q.
Lowest point of a wave
9
30 sec
Q.
The number of complete waves that pass a given point in a certain amount of time
10
30 sec
Q.
When the Earth moon and sun are lined up. Creates the highest high tides and lowest low tides.
11
30 sec
Q.
When the Earth moon and sun make a 90 degree angle. Very little change in high and low tide tide.
12
30 sec
Q.
the pattern of phases of the moon
13
30 sec
Q.
lighting or light
14
30 sec
Q.
getting bigger
15
30 sec
Q.
getting smaller
16
30 sec
Q.
the curved sickle shape of the waxing or waning moon.
17
30 sec
Q.
More than half but less than fully illuminated
18
30 sec
Q.
The spinning of Earth on its axis. causes day and night
19
30 sec
Q.
The movement of an object around another object.
20
30 sec
Q.
An imaginary line that passes through Earth's center and the North and South poles, about which Earth rotates
21
30 sec
Q.
to lean, incline, slope, or slant. Earth's is 23.5 degrees
22
30 sec
Q.
half of the earth
23
30 sec
Q.
a current caused by the rising of heated fluid and sinking of cooled fluid
24
30 sec
Q.
A mass of sinking cool air that usually bring fair weather.
25
30 sec
Q.
A mass of rising warm air that usually bring wet, stormy weather.
26
30 sec
Q.
A severe storm that develops over tropical oceans and whose strong winds of more than 120 km/h spiral in toward the intensely low-pressure storm center
27
30 sec
Q.
the edge of a cold air mass (produces thunderstorms heavy rain or snow
28
30 sec
Q.
a front where warm air moves over cold air and brings drizzly rain and warmer weather
29
30 sec
Q.
movement of air from land to sea at night, created when cooler, denser air from the land forces up warmer air over the sea
30
30 sec
Q.
the shape of the land
31
30 sec
Q.
height above sea level
32
30 sec
Q.
lines that connect points of equal elevation
33
30 sec
Q.
the difference in elevation from one contour line to the next
34
30 sec
Q.
The breaking down of rocks and other materials on the Earth's surface.
35
30 sec
Q.
Processes by which rock, sand, and soil are carried away (i.e. weathering, glaciation)
36
30 sec
Q.
Process in which sediment is laid down in new locations.
37
30 sec
Q.
A plate boundary where two plates move toward each other.
38
30 sec
Q.
The region where oceanic plates sink down into the asthenosphere.
39
30 sec
Q.
A plate boundary where two plates move away from each other.
40
30 sec
Q.
A plate boundary where two plates move past each other in opposite directions
41
30 sec
Q.
A deep valley that forms where two plates move apart
42
30 sec
Q.
The name of the single landmass that broke apart 200 million years ago and gave rise to today's continents
43
30 sec
Q.
Sections of the Earth's crust that move due to convection currents.
44
30 sec
Q.
thinner, more dense, younger crust making ocean floor
45
30 sec
Q.
thicker part of the earth's crust that forms the large landmasses. It is generally older than oceanic crust.
46
30 sec
Q.
created by plate tectonics and weathering; include mountains, trenches, volcanoes, ocean ridges and rift zones
47
30 sec
Q.
An environmental change that happens quickly but does not last a long time.
48
30 sec
Q.
Environmental change that occurs slowly over time and affects organisms over generations.
49
30 sec
Q.
a man-made, underwater structure, typically built for the purpose of promoting marine life in areas of generally featureless bottom.
50
30 sec
Q.
Describes living factors in the environment.
51
30 sec
Q.
physical rather than biological; not derived from living organisms.
52
30 sec
Q.
the struggle between organisms to survive in a habitat with limited resources
53
30 sec
Q.
The largest population that an area can support
54
30 sec
Q.
the variety of life in the world or in a particular habitat or ecosystem.
55
30 sec
Q.
The ability to keep in existence or maintain. A sustainable ecosystem is one that can be maintained
56
30 sec
Q.
organisms that make their own food—photosynthetic life.
57
30 sec
Q.
an organism that is incapable of photosynthesis and must obtain its energy by consuming other organisms
58
30 sec
Q.
An organism that breaks down wastes and dead organisms
59
30 sec
Q.
the struggle between organisms to survive in a habitat with limited resources
60
30 sec
Q.
Collected body of data from observations and experiments
61
30 sec
Q.
the action of thinking about something in a logical, sensible way.
62
30 sec
Q.
state or assert that something is the case, typically without providing evidence or proof.
