Multiple Choice Questions (MCQs)
Topic 1: An Interesting Photograph!
1. What does the photograph of Earth from the Moon primarily show?
a) The continents clearly marked
b) The Earth’s surface with no visible atmosphere
c) The Earth as a bright, round object in the sky
d) The Moon’s surface with clouds in the background
2. Why do we not easily see the Moon and stars during the day?
a) They are not present during the daytime
b) The Sun’s light is too bright
c) They disappear due to the Earth’s movement
d) The atmosphere absorbs their light
3. What was the first human-made object to capture images of Earth from space?
a) Apollo 11
b) Hubble Space Telescope
c) Sputnik 1
d) Luna 3
4. How does the Moon appear when viewed from its surface?
a) Similar to how it looks from Earth
b) Completely dark
c) Blue and white with an atmosphere
d) A barren and rocky surface with no sky color
5. Why does the Earth appear to “float” when viewed from space?
a) Due to the absence of gravity in space
b) Because it is surrounded by the atmosphere
c) Since there are no physical boundaries around it
d) Because of the curvature of light in space
Answers & Explanations
1. (c) The Earth as a bright, round object in the sky – From the Moon, Earth appears as a glowing sphere in the dark sky.
2. (b) The Sun’s light is too bright – The brightness of the Sun prevents us from seeing the stars during the day.
3. (c) Sputnik 1 – The Soviet satellite Sputnik 1 was the first artificial object to take images from space.
4. (d) A barren and rocky surface with no sky color – The Moon lacks an atmosphere, so the sky appears completely black.
5. (a) Due to the absence of gravity in space – The Earth appears to float because it is viewed from a microgravity environment.
Topic 2: What We Have Learnt
1. Why do children slide down a slide but not up?
a) Due to friction
b) Because of gravity
c) Because the surface is too smooth
d) Due to wind resistance
2. What would happen if the slide were in space?
a) Children would slide in both directions
b) They would float instead of sliding
c) They would slide only in one direction
d) The slide would not function
3. Why do we see stars mostly at night?
a) Because they are not visible during the day
b) The Sun’s brightness makes them invisible during the day
c) Stars only shine at night
d) Earth’s atmosphere blocks them during the day
4. What did Sunita Williams observe about Earth’s borders from space?
a) The borders were clearly visible
b) Countries appeared divided by natural lines
c) No visible borders, only land and water
d) The continents looked connected by bridges
5. What is the main reason we experience weightlessness in space?
a) Lack of gravity
b) Absence of air resistance
c) The rapid speed of orbiting objects
d) No magnetic field in space
Answers & Explanations
1. (b) Because of gravity – Gravity pulls objects downward, making sliding up difficult.
2. (b) They would float instead of sliding – In a microgravity environment, objects float instead of moving in a defined direction.
3. (b) The Sun’s brightness makes them invisible during the day – The stars are always present, but sunlight outshines them.
4. (c) No visible borders, only land and water – Borders are human-made and not visible from space.
5. (c) The rapid speed of orbiting objects – Astronauts feel weightless because they are in freefall around the Earth.
Topic 3: What If It Finishes…?
1. What is the main source of petrol and diesel?
a) Lakes
b) Underground reservoirs
c) Trees
d) Solar panels
2. Why is petrol considered a non-renewable resource?
a) It can be produced easily
b) It is found everywhere
c) It takes millions of years to form
d) It can be made synthetically
3. What alternative fuel did the children in the lesson suggest?
a) Kerosene
b) CNG and solar power
c) Petrol extracted from plants
d) Water-powered vehicles
4. What is a major issue caused by excessive vehicle use?
a) Increased employment
b) Lower fuel prices
c) Air pollution and traffic congestion
d) Less dependence on public transport
5. What would happen if petrol and diesel completely ran out?
a) Vehicles would stop functioning
b) Alternative fuels would immediately replace them
c) Electricity would replace all fuels
d) There would be no impact
Answers & Explanations
1. (b) Underground reservoirs – Petrol and diesel come from crude oil, extracted from deep underground.
2. (c) It takes millions of years to form – Fossil fuels like petrol and diesel take geological time to develop.
3. (b) CNG and solar power – These are suggested alternatives to reduce dependence on petrol.
4. (c) Air pollution and traffic congestion – More vehicles result in increased pollution and road congestion.
5. (a) Vehicles would stop functioning – Most transportation relies on petrol and diesel; without them, alternatives would be needed.
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