Let’s go step by step to fill in the blanks correctly.
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Q.1 Fill in the blanks with suitable words.
a)
Atmosphere is the mixture of gases that surrounds the Earth.
→ This is basic science — the layer of air around our planet is called the atmosphere.
b) The Earth, our planet, absorbs energy from
the Sun in the form of solar radiation.
→ Solar radiation comes from the Sun. That’s where all the heat and light for Earth come from.
c) About 30 percent of incoming solar energy is
reflected back into space.
→ Not all sunlight gets absorbed — some bounces off clouds, ice, and land. Scientists call this “albedo,” but for this worksheet, “reflected” is the right word.
d) A greenhouse is made up of glass panes which allow sunlight through and trap heat inside.
→ Then it says:
“__________ in the atmosphere, like the glass panes in a greenhouse, lets in sunlight and traps the heat energy escaping from the Earth. As a result, the temperature of Earth __________.”
First blank:
Greenhouse gases
→ These are the gases (like CO₂, methane) that act like the glass in a greenhouse — they let sunlight in but trap heat trying to escape.
Second blank:
rises or
increases
→ Because heat is trapped, the Earth gets warmer. So the temperature goes up.
We’ll use “rises” — it’s simple and matches common textbook language.
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Q.2 Write the major greenhouse gases in the spaces below.
Looking at the diagram, we need to name the main greenhouse gases. From science class, we know:
- Carbon dioxide (CO₂)
- Methane (CH₄)
- Water vapor (H₂O)
- Nitrous oxide (N₂O)
But since there are only 4 boxes, and these are the most commonly taught ones in school, we’ll pick the top 4:
Top two on left:
→
Carbon dioxide
→
Methane
Top two on right:
→
Water vapor
→
Nitrous oxide
*(Note: Sometimes textbooks list just 3 or 4 — but these 4 are standard. If your teacher prefers specific ones, you can adjust — but based on general knowledge, these are correct.)*
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Final Answer:
Q.1
a) Atmosphere
b) the Sun
c) reflected
d) Greenhouse gases; rises
Q.2
Major greenhouse gases:
- Carbon dioxide
- Methane
- Water vapor
- Nitrous oxide
Parent Tip: Review the logic above to help your child master the concept of greenhouse effect worksheet middle school.
