Free Our Universe 02 Practice Test - 5th Grade 

Question 1

While observing the sky, Hina noticed that the moon is round and bright on one night and a week later, only half the moon was visible. Which of the following options correctly defines this phase of moon?

A.

Crescenting

B.

Whirling

C.

Waning

D.

Waxing

SOLUTION

Solution : C

- The Moon goes through a cycle of changing its shape when revolving around the Earth.
- After the full moon phase, the moon visible from Earth starts to decrease in size which is known as waning.
-This happens due to its position and sunlight falling on it.

Question 2

The increasing phase size of the moon is called_______

A.

Whirling

B.

Crescenting

C.

Waning

D.

Waxing

SOLUTION

Solution : D

The Moon goes through a cycle of changing its shape when revolving around the Earth. This happens due to its position and sunlight falling on it. Waning means to decrease and waxing means increasing.

Question 3

"The Great Red Spot" is a huge storm in the atmosphere of ___.

A.

Uranus

B.

Neptune

C.

Jupiter

D.

Earth

SOLUTION

Solution : C

- The great red spot on jupiter is a storm that is as big as 3 earths and has been active for 200 years.
- The reason for this ferocious storm is the high speed of rotation of jupiter.

Question 4

Which among the following planet has the fastest speed of rotation?

A.

Neptune

B.

Jupiter

C.

Pluto

D.

Earth

SOLUTION

Solution : B

- Jupiter has the fastest speed of rotation among all the planets of the solar system.
- As a result of Jupiter's high speed of rotation, the duration of one day in Jupiter is the shortest among all the planets in the solar system.

Question 5

An __ is a definite path in which planet revolves around the Sun.

A. asteroid
B. orbit
C. orion
D. ursa major

SOLUTION

Solution : B

- A planet has a definite path in which it revolves around the Sun. This path is called an orbit.

Question 6

___ is the largest moon of Saturn.

A. Mimas
B. Dione
C. Titan
D. Tethys

SOLUTION

Solution : C

- Saturn has about 62 moons out of which Titan is the largest moon which is even bigger than mercury and pluto.
- Mimas, Dione and Tethys are also the moons of saturn.

Question 7

Which of the following statement(s) is/are correct in regard to planet Venus?

A. It is the second planet from the Sun.
B. It is the hottest planet in the solar system.
C. Life is possible on planet Venus.
D. It is the brightest planet in the solar system.

SOLUTION

Solution : A, B, and D

- Venus is the second planet from the Sun.
- It is the hottest and brightest planet in the solar system.
- It is a very dry planet with no evidence of water, oxygen and high surface temperature. These are some of the reasons due to which life is impossible on this planet.

Question 8

Which constellation is known to resemble a hunter?

A.

Scorpio

B.

Gemini

C.

Pegasus

D.

Orion

SOLUTION

Solution : D

- Constellations is a group of stars that forms an imaginary pattern.
- When Orion was noticed in the sky, people long long ago thought that it resembled a hunter. In Greek Mythology, Orion was a giant hunter.

Question 9

Which of the following is/are correct in regard to the Earth's axis?

A. Axis of Earth is slightly tilted
B. It passes through North and South pole
C. Earth rotates about this imaginary axis
D. It is equidistant from poles of Earth

SOLUTION

Solution : A, B, and C

- An imaginary line going through the centre of Earth from the North to South pole of Earth is called the axis.
- It is slightly tilted in such a way that the angle it makes with vertical is 23.4 degrees.
- The Earth rotates or spins about this imaginary axis.
- The axis is at different distances from the poles.

Question 10

Which of the following planet(s) is/are known as the Ice giant(s)?

A. Neptune
B. Jupiter
C. Saturn
D. Uranus

SOLUTION

Solution : A and D

- Uranus and Neptune are composed mainly from ice. Moreover, they are too huge in size that multiple Earths could fit into them.
- Due to these reasons both these planets are known as Ice Giants.