Download The Inner Planets Write the letter of each phrase next to

The Inner Planets
Write the letter of each phrase next to the planet or satellite to which it refers.
Letters “E,” “G,” “P,” and “T” will be used twice.
A.
B.
C.
D.
E.
F.
G.
H.
I.
J.
K.
L.
M.
N.
O.
P.
Q.
R.
S.
T.
The third planet from the sun.
The smallest of the inner planets.
The largest of the inner planets.
Sometimes called Earth’s twin.
Surface used to have running water.
May have formed after a Mars-sized body hit the Earth.
Has a very old surface.
Has a very young surface.
Has “seas” called maria.
Its days are longer than its years, if measured in sidereal terms.
It is about half the size of Earth.
A year on this planet is only 88 days.
Its atmosphere is covered with thick clouds.
The closest planet to the Sun to have a natural satellite.
Has two small satellites: Phobos and Deimos.
The craters on this body erode over long periods of time.
Is red in color.
Has a strong magnetic field.
The hottest planet.
Has no atmosphere.
1. Mercury
B, G, L, T
2. Venus
D, E, J, M, S
3. Earth
A, C, H, N, P, R
4. Moon
F, G, I, T
5. Mars
E, K, O, P, Q
Name: ______________________________________________
Inner and Outer Planets
Date: _______________________
The Outer Planets (and a miffed dwarf planet)
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Property
Jupiter
1
2
3
Is a gas giant.
Has an atmosphere of hydrogen and
helium.
Has an atmosphere of hydrogen and
helium with some methane.
4
Has no atmosphere.
5
Gives off heat.
6
Has rings.
7
Its moon, Io, is the most volcanically
active body in the solar system.
8
Has 14 moons.
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13 Is the gas giant closest to the Sun.
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14 Is the least dense of all the planets.
Is the farthest planet visible from
Earth without a telescope.
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16 Spins on its side.
17 Is blue in color.
18 Is the outermost planet.
19 Is the largest planet.
Has a storm system called the Great Red
20 Spot, which is 3x bigger than Earth.
21
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15
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Its moon, Ganymede, is the largest
satellite in the solar system.
Its moon, Charon, is half the size of
10
the planet.
One of its moons, Titan, is larger than
11 Mercury.
Its moon, Triton, has active
12
volcanoes.
9
Saturn
Check off what applies.
Uranus
Neptune
Pluto
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Is sometimes considered a double
planet with its moon.
22 Has no moons.
23 Has been visited by Earth spacecraft.
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*Technically an ice giant, but “gas giant” suffices.