HARD
7th CBSE
IMPORTANT
Earn 100

What are different forces that act on a kite when it flies? Name them and explain their working with the help of a diagram.  

Important Questions on Some Natural Phenomena

MEDIUM
7th CBSE
IMPORTANT
Name the factors on which atmospheric pressure depends. Explain how does atmospheric pressure changes when we go to the mountains. 
HARD
7th CBSE
IMPORTANT
How does an aeroplane fly in the sky? Does atmospheric pressure affect the flight of aeroplane?
MEDIUM
7th CBSE
IMPORTANT

A super cyclone moved in from the Bay of Bengal to hit the coastal Odisha on 29th October 1999. This super cyclone with a wind speed of over 250 km/h has left 1.5 million people homeless and the death toll is believed to be as high as 1,00,000.

What precaution the government and people should have taken to reduce the loss that has occurred?  

EASY
7th CBSE
IMPORTANT
A cyclone becomes steadily weaker on reaching a landmass. It is because of 
EASY
7th CBSE
IMPORTANT
Which of the following statements is correct?
HARD
7th CBSE
IMPORTANT

Solve the given crossword.
Across:
1. Another name for cyclone. 
2. A funnel-shaped violent storm.
3. A very strong and high- speed wind.
4. A light and cool wind.
Down:
5. The sound produced during lightning.
6. The storm over low-pressure area.
7. The instrument used to measure wind speed.

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“Note: This question given in the book seems to have errors and the modified question should be as given below.”

Solve the given crossword.
Across:
1. Another name for cyclone. 
2. A funnel-shaped violent storm.
3. A very strong and high- speed wind.
4. A light and cool wind.
Down:
5. The sound produced during lightning.
6. The storm over low-pressure area.
7. The instrument used to measure wind direction.

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MEDIUM
7th CBSE
IMPORTANT
Why do bicycle tubes burst when over-filled?
MEDIUM
7th CBSE
IMPORTANT

Observe the given diagrams and compare both of them.

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