Worksheet Solutions: Our Sky

Multiple Choice Questions (MCQs)

Q1: What color does the sky appear in the morning?
(a) Blue
(b) Orange and bright
(c) Red
(d) Dark

Ans: (b) Orange and bright

Q2: When the Sun is present in the sky, why are other stars not visible?
(a) They disappear during the day
(b) They are covered by clouds
(c) The Sun is very bright
(d) They move away

Ans: (c) The Sun is very bright

Q3: How are shadows at noon compared to morning and evening?
(a) Long
(b) Very dark
(c) Short
(d) Invisible

Ans: (c) Short

Q4: When is Diwali celebrated?
(a) On the Full Moon
(b) On the New Moon
(c) When the Moon is a crescent
(d) On the first night of the Moon

Ans: (b) On the New Moon

Q5: What did India's Chandrayaan mission aim to explore?
(a) Mars
(b) The Sun
(c) The Moon
(d) Venus

Ans: (c) The Moon

Fill in the Blanks

Q1: The Sun appears to move from ________ to ________ during the day.
Ans: East, West

Q2: Ancient people used the shape of the Moon to keep count of the ________.

Ans: days

Q3: On some nights, the Moon looks like the letter ________.

Ans: C

Q4: The Sun gives us ________ and ________.
Ans: light and heat

Q5: If the object is close to the source of light, the shadow becomes ________.

Ans: bigger

Match the Following

Ans: 

Short Question Answers

Q1: What happens to the sky's color as the day progresses?
Ans: In the morning, the sky is orange and bright. In the afternoon, it is blue and clear. At night, it turns dark with twinkling stars.

Q2: What is the significance of the Full Moon (Poornima) and the New Moon (Amavasya)?
Ans: The Full Moon, or Poornima, is when the Moon appears as a complete circle. The New Moon, or Amavasya, is when the Moon is not visible at all.

Q3: Why do shadows in the morning and evening form in different directions?
Ans: Shadows in the morning and evening form in different directions because the Sun appears to move from East to West. As the position of the Sun changes, the direction of the shadow also changes.

Q4: What is the significance of the Chandrayaan mission?
Ans: Chandrayaan is India's mission to explore the Moon. In 2023, the Vikram Lander successfully landed on the Moon and gathered important data about its surface.

Q5: How does studying the sky help us understand nature?
Ans: Studying the sky helps us track time, understand natural cycles, and observe celestial events like the movement of the Sun, Moon, and stars.

Vocabulary Activity - "Guess the Word"

Q1: A group of stars known as the Seven Sages in Indian astronomy.
Ans: Saptarshi

Q2: The time of the day when the Sun is directly overhead and shadows are the shortest.

Ans: Noon

Q3: The phenomenon where an object blocks light and forms a dark shape.

Ans: Shadow

Q4: The device built by Raja Jai Singh that tells time accurately based on shadow.

Ans: Sundial (Samrat Yantra)