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UNIT 10: PLANETS

TEST 3 Çözümler için 4. Size is important about gravity. If a planet is smaller than
the Earth, it has got weak gravity. Otherwise, there is
karekodu
okutunuz
very strong gravity if a planet is Uranus - sized.
1. Venus is the ............... planet in our solar system and
sometimes you can see it with the naked eye if you know Planets Equator length
where to look.
Earth 12,742 km
Fill in the blank with the appropriate option.
Jupiter 139,822 km
A) smallest B) brightest Saturn 116,464 km

C) darkest D) biggest
Mercury 4,8794 km
Mars 6,779 km

We cannot understand from the information and the
2. table above that ............... .
An astronomer, Clyde Tombaugh discovered
Pluto on February 18, 1930, and scientists A) there is weaker gravity on Mercury than on the Earth
considered it as the ninth planet from the Sun. and Mars
After 1992, researchers explored several objects
of similar size of Pluto around its orbit. Scientists B) Saturn and Jupiter have got stronger gravity than the
classified Pluto as a dwarf planet after 2006 Earth has got
because it hasn’t got the characteristics of a real C) Mars has got the weakest gravity, so people weigh
planet. Today, there are five dwarf planets in the the least on Mars
solar system. They are Pluto, Eris, Haumea,
Makemake and Ceres. D) a person weighs the most on Jupiter because it has
the strongest gravity

According to the text above, which of the following
sentence cannot we say?
A) Clyde Tombaugh was the discoverer of a dwarf planet
called Pluto.
B) Scientists didn’t class Pluto as a planet after 2006.
C) Today, Pluto is considered as a dwarf planet by
scientists. 5. Planet Diameter Orbit period
D) Scientists didn’t discover any dwarf planets except Mars 6,779 km 1.9 years
Pluto. Earth 12,742 km 365.26 days
Venus 12,103 km 224.70 days
Mercury 4,8794 km 88 days

3. There are eight planets in the solar system. The last Jupiter 139,822 km 11.9 years
planet in the solar system is Neptune, so it is the coldest
all of other planets. The average surface temperature is According to the table above, which of the following
-201°C. It is the fifth smallest planet in the solar system. option is correct?
It is clear from the information above that ......... .
A) Mercury is bigger than Mars, but smaller than Venus
A) Neptune isn’t farther to the sun than the other planets and Earth.
in the solar system
B) A year on Earth is much longer than a year on
B) there is no planet in the solar system closer to the sun Mercury.
than Neptune
C) The orbit period of Jupiter is shorter than the orbit
C) other planets in the solar system are not hotter than
Neptune period of Mars.
D) there are three planets in the solar system larger than D) Venus is smaller than Jupiter, but its orbit period is
Neptune longer than Jupiter’s.
GRADE 7 ENGLISH 77