Download Q1. Complete the table by viewing the videos of the planets of the

Q1. Complete the table by viewing the videos of the planets of the solar system
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Assignment
Q1. Define
a.
b.
c.
d.
e.
f.
Solar System
A planet
A star
A moon
A comet
An asteroid
Named after
Mercury
Time taken
for one
revolution
Time taken
for one
rotation
No. of
moons
Distance
from the sun
Large in
terms of size
Name of the
planet
Topography
(Surface)
Solid/Gaseous
and Main
Elements
Constituents
of the
AtmosphereGases
Present
ExplorationYear, Space
probe(s) sent
g. A meteor
h. A meteorite
i. Milky Way Galaxy
Q2. List the following
a.
b.
c.
d.
e.
f.
g.
Names of the eight planets of the solar system in the correct sequence.
Any three dwarf planets of the solar system
Any two terrestrial planets
Any two gas giants
Any three space probes sent by astronomers to explore planets
The two most common gases found in the sun
Two gases which make up most of the gas giants
Q3. Name the following
a.
b.
c.
d.
e.
f.
The galaxy in which our solar system is located
The brightest planet in our solar system
The planet of the solar system which has the brightest set of rings around it
The dwarf planet which was considered as a planet till few years ago.
The planet that has its axis tilted at an angle of 90 degrees
A moon of the outer planet which contains huge amount of water
Q4. Identify the member of our solar system from the given clues.
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
I am the largest planet in the solar system.
I take 88 days to orbit around the sun.
I was the last planet to be discovered by astronomers
I am also called the twin sister of the earth
I am also known as the twin of the planet Neptune
I appear in the solar system after a long period of time
I am the area in the solar system which lies between Mars and Jupiter
I am a planet that rotates on my axis in only 10 hours.
I am a planet which has recorded the strongest winds in the solar system.
I am the satellite of the planet Earth.
Q5. Match the following
a.
b.
c.
d.
e.
Comets
Saturn
Meteors
Venus
Methane
Q6. Distinguish between
________
________
________
________
________
1. Shooting Stars
2. Have a glowing tail
3. Also called ‘veiled planet’
4. Reflects sunlight to give blue tint to planets
5. 2nd largest planet in the solar system
a.
b.
c.
d.
A star and a planet
A comet and an asteroid
Terrestrial planet and a gas giant
Meteors and meteorites
Q7. Write what would happen
a.
b.
c.
d.
e.
f.
g.
h.
To Earth if Jupiter was not there!
The heat and light from the sun stopped coming to earth!
There was no atmosphere on the earth!
The Earth moves closer to the sun!
The axis of the Earth gets tilted at an angle of 90 degrees!
The content of carbon dioxide increases to a large extent in the Earth’s atmosphere!
The Earth takes 48 hours to complete one rotation!
Q8. Give Reasons why
a.
b.
c.
d.
e.
f.
g.
h.
i.
j.
k.
l.
m.
n.
o.
p.
q.
r.
The planets do not move away from the sun
The sun does not have a solid surface.
We would not be able to land any spacecraft on Jupiter
It is very difficult to reach the planet mercury from earth.
The surface of Mercury experiences more meteors attacks than the Earth
Venus is often called our sister planet
A day on Venus lasts longer than a year on the earth
The earth and the moon together are known as a planetary system
Every fourth year on the Earth has 366 days
Mars takes more time to orbit around the sun than the earth
In-spite of its huge size, Jupiter is not considered as a star
Jupiter is termed after the king of all gods
A day on Jupiter lasts only 10 hours compared to 24 hours in case of the earth
Europa, a satellite of Jupiter is considered as a hotspot in search of extra terrestrial life
The rings of the planet Saturn are clearly visible from the earth.
Uranus appears blue in colour
Uranus and Neptune were discovered very late by astronomers in the twentieth century
Neptune is named after the roman god of the sea
Q8. Imagine if you are an astronaut, which planet or satellite would you like to visit and why?
Q9. Create a mnemonic to remember the names of the planets of our solar system.
Q10. Explain any three characteristics of each of the planet that you have studied.
Q11. Compare and contrast the planets given below with reference to their size, its composition, time
taken to rotate on its axis and time taken to revolve around the sun.
a. Earth and Neptune
b. Venus and Uranus
c. Mercury and Jupiter
d. Mars and Jupiter