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WorksheetsUnit 7 pretest
Total questions: 16
Worksheet time: 28mins
Name
Class
Date
1.
Kira notices that the plants in the school garden are green and growing in July, but are brown in December. Why do plants grow more in summer than in winter?
a)
Earth is closer to the sun in the summer
b)
Earth rotates at a faster rate in summer.
c)
The core of Earth is closer to the surface in summer.
d)
The northern half of Earth is tilted toward the Sun in summer.
2.
Which of these best describes when a lunar eclipse will occur?
a)
when Earth is between the Moon and the Sun
b)
when the Moon passes between Earth and the Sun
c)
when the Sun is between Earth and the Moon
d)
when Earth is at a 90° angle to the Moon and the Sun
3.
Which of the following is most necessary for life to develop on another planet?
a)
Liquid water
b)
Rocky surfaces
c)
Warm soil
d)
Atmospheric oxygen
4.
About how long is a lunar cycle?
a)
1 day
b)
1 week
c)
29 1/2 days
d)
52 weeks
5.
Why is some food dehydrated for astronauts to eat in space?
a)
to make the food less messy to eat
b)
to preserve the food for extended flights
c)
to increase the food's nutritional content
d)
to keep the food from floating off the plate
6.
Students studied the revolution of Earth around the Sun. During which month will Florida have the most sunlight energy available?
a)
March
b)
June
c)
September
d)
December
7.
In 1976, the Viking 1 Lander was sent to Mars to analyze atmospheric gases and soil samples. The Viking 1 Lander was most likely a __________.
a)
space probe
b)
space shuttle
c)
lunar module
d)
natural satellite
8.
Tides on Earth are mostly caused by the gravitational pull of ______.
a)
the Sun
b)
stars
c)
the Moon
d)
asteroids
9.
In which phase is the mood when in the position shown in the diagram?
a)
New Moon
b)
Full Moon
c)
Last-quarter Moon
d)
First-quarter Moon
10.
The temperatures in space vary from extremely cold to extremely hot. Earth's surface temperature is relatively stable. Which of these is most responsible for Earth's surface temperatures?
a)
solar radiation reflected from the Moon
b)
many volcanic eruptions near the Ring of Fire
c)
the greenhouse effect in the atmosphere
d)
plankton distribution in shallow ocean waters
11.
Which of these occurs when the North Pole is tilted toward the Sun and the United States has the most daylight hours of the year?
a)
Summer solstice
b)
Winter solstice
c)
Spring Solstice
d)
Fall equinox
12.
Which of these criteria could not be used when considering food and energy for astronauts during manned space flights?
a)
history of space food
b)
food crumbs in zero gravity
c)
re-hydration of certain foods
d)
food storage for long periods
13.
During which month will the Southern Hemisphere have days with the fewest number of daylight hours?
a)
December
b)
June
c)
March
d)
September
14.
What is significant about the discovery of water on Mars?
a)
It proves there is life on Mars.
b)
It provides evidence there may be life on Mars.
c)
It proves there was an advanced civilization on Mars.
d)
It provides evidence of an advanced civilization on Mars.
15.
How does gravity support life on Earth?
a)
by forcing Earth to continuously spin on its axis, which contributes to day and night
b)
by causing changes in the distance between Earth and the sun, which contributes to the seasons
c)
by keeping water and gases in the atmosphere close to Earth's surface, which contributes to life processes
d)
by preventing meteors and comets from hitting Earth's surface, which protects living organisms from space fragments
16.
Which of these provide the best evidence that life could develop on Mars?
a)
its atmospheric gases
b)
its surface temperatures
c)
its craters and rocky surface
d)
its ice and organic molecules
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