CBSE Class 5 Science Our Universe Worksheet

Our Universe

A. Hard Words to learn: -
1) Universe
2) Galaxies
3) Sirius
4) Constellation
5) Terrestrial planets
6) Rotation
7) Revolution
8) Lunar eclipse

B. Tick the correct answers: -

1) The planets, the stars, the moon and the sun are called
a. Galaxies
b. Heavenly Bodies
c. Craters
Ans: (b)

2) A galaxy is a group of
a. Many planets
b. Many Moons
c. Many Stars
Ans: (c)

3) The Earth's natural satellite is: -
a. The Mars
b. The Sun
c. The Moon
Ans: (c)

C. Fill in the blanks: -
1) Our solar system is a small part of the Milky way galaxy.
2) Neptune is the planet farthest from the Sun.
3) The revolution causes changes of seasons.
4) The Earth is sometimes called the Blue Planet.

D. Name the following: -
1) Everything that exists around or away from us            The Universe.
2) The big ball of gas with own heat and light                  Sun.
3) The brightest star in the night sky                              Sirius.
4) The word 'planet' means                                            Wanderer.
5) The movement of the earth on its own axis                 Rotation.
6) The Journey of the Earth around the sun on its orbit    Revolution.

E. Question/Answer

1) Why is the Earth also known as 'Blue Planet’?
Ans- The Earth's surface is covered with 71% of water hence it is also called blue planet.

2) Who was the First person to walk on the moon?
Ans- Neil Armstrong was the first person to walk on the moon.

3) What is rotation?
Ans- The Movement of the Earth on its own axis is called rotation it takes 24 hours to complete.

4) Describe the solar system.
Ans- The Solar system includes the sun and its eight planets and their moons.
Name of these planets are: -
1. Mercury
2. Venus
3. Earth
4. Mars
5. Jupiter
6. Saturn
7. Uranus
8. Neptune

5) What is the difference between star and planet?
Ans- Difference between star and planet: -
       Star                                                   Planet
1 Stars have their own light.          1 Planet do not have their own light
2 They are big in size                    2 They are smaller than the stars
3 They have high temperature       3 They have low temperature

1. FILL IN THE BLANKS:

a) Moon is ....................... km away from the earth.

b) Moon completes one revolution around the earth in ....................... days.

c) Earth's gravity is ....................... times that of moon's gravity.

d) The temperature on the moon ranges from ....................... to ....................... 

e) Everyday earth experiences ....................... high and low tides

f) Tides of oceans vary with the ....................... of the moon

g) At the time of new moon the position of the moon is ....................... 

h) Earth has ....................... moon.

i) The changes in the shape of moon are called ....................... of the moon.

j) During eclipse the sun, moon and earth are in ....................... line.

k) Lunar eclipse occurs only on ....................... night

l) In a ....................... eclipse the moon casts its shadow on the earth.

m) The space craft that carried Neil Armstrong to moon is ....................... 

n) The regular rise and fall of ocean water is called ....................... 

o) In a ....................... eclipse moon lies in the shadow of the earth.

p) Space craft sent to orbit a planet are called ....................... 

q) The surface of the moon is ....................... and ....................... 

r) In ....................... eclipse the earth stops the light reaching the moon from the sun.

s) The space craft launched to moon by India in 2008 from Sriharikotta is ....................... 

t) Satellites are put into orbit around earth by ....................... 

u) The objects that caused craters on the moon ....................... 

2. Say TRUE or FALSE :

a) Sun is smaller than moon.

b) There is no atmosphere on the moon.

c) Air is present all over the moon.

d) A heavy object on the earth can be lifted easily on the moon.

e) Moon is closer to the earth than sun.

f) Tides are caused by the combined gravitational pull of the sun and the moon.

g) The moon changes its shape.

h) In Lunar eclipse moon comes between the sun and the earth.

i) Eclipses can be total or partial.

3. Answer the following:

a) How are craters formed on the moon?

b) Mention some uses of Artificial Satellites.

c) Name three satellites launched by India.

d) What is Solar Eclipse?

e) What is Lunar Eclipse?

f) Define New moon day.

4. Give Reason:

a) No sound can be heard on the moon.

b) An object too heavy on the earth can be lifted easily on the moon.

c) The moon seems to change its shape.

d) Solar eclipse is visible only on few parts of the earth.

e) We cannot see the moon completely on someday