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WorksheetsCH 27 Earth Putman
Total questions: 12
Worksheet time: 6mins
Name
Class
Date
1.
____________ collect and focus electromagnetic radiation emitted or reflected from distant objects.
a)
micronisia
b)
Microcsope
c)
telescope
d)
telegraph
2.
Electromagnetic radiation is classified by __________and __________.
a)
amplitude modulation
b)
frequency modulation
c)
wavelength, frequency
d)
wavelength, amplitude
3.
The two main types of optical telescopes are __________ and __________.
a)
refractor, defractors
b)
refractors, reflectors
c)
fractors, flectors
d)
microfractors, minifractors
4.
_______________ have gathered information about the Moon using telescopes, space probes, and astronaut explorations.
a)
astronomers
b)
star gazers
c)
chemist
d)
Kyle Scott
5.
Like Earth’s crust, the Moon’s crust is composed mostly of _________________.
a)
silicates
b)
mud
c)
rocks
d)
obsidian
6.
Surface features on the _________ include highlands, maria, ejecta, rays, and rilles. It is heavily cratered.
a)
atmosphere
b)
moon
c)
outer planets
d)
earth
7.
The Moon probably formed about _________________ in a collision between Earth and Mars-size object.
a)
4.5 billion years ago
b)
4.5 million years ago
c)
45 thousand years ago
d)
4,500 years ago
8.
Earth’s _________ defines one day, and Earth’s revolution around the Sun defines one year.
a)
evolution
b)
resolution
c)
dynamics
d)
rotation
9.
____________are caused by the tilt of Earth’s spin axis relative to the ecliptic plane.
a)
weather
b)
seasons
c)
deserts
d)
ice caps
10.
The Moon’s____________result from our view of its lighted side as it orbits Earth.
a)
phases
b)
dark side
c)
rotation
d)
sunny side
11.
The gravitational attraction of both the Sun and the Moon cause _________________.
a)
early births
b)
tides
c)
bad moods
d)
seasons
12.
Solar and lunar _______________ occur when the Sun’s light is blocked.
a)
eclipses
b)
forces
c)
phases
d)
darkness
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