Advertisements
Advertisements
Question
Describe the various types of clouds.
Solution
The four types of clouds are :
- Cirrus clouds - These are feathery, fibrous clouds which form at very high levels of 5 to 10 km. They consist of tiny crystals of ice and look like wisps of cotton floating in the sky.
- Cumulus clouds - These are cauliflower-shaped clouds that have great vertical height and a flat base; they cause rainfall with lightning and thunder and are usually white or grey in colour.
- Stratus clouds - These are sheet-like clouds that spread out over the whole sky. They usually form at low levels, less than 2 km. They are uniformly grey and dull.
- Nimbus clouds - These are the real rain clouds – thick, dark and black, and spread out in layers. They cause continuous rain or snow.
APPEARS IN
RELATED QUESTIONS
Many people leave their pets in parked cars. They think they will be gone for a few minutes, or it will be alright to leave a window open. The temperature inside a parked car can rise up to more than 50°C in a matter of few minutes, irrespective of it being a hot or a cloudy day.
What would be the right thing to do if you see a pet locked inside a car on a hot day?
Fill in the blanks
The temperature of a place depends upon its __________ ocean currents, _________.
Fill in the blank:
Planetary winds are also called permanent or _________winds.
What is condensation?
What do you understand by the term ‘4 o’clock showers’?
Differentiate between precipitation and condensation. Give one example of each.
What is the Beaufort scale?
How is the weather forecast made? Why is weather forecast necessary?
This could be a classroom activity. If your school laboratory has an anemometer, use it to record your city’s wind speed for a week. Use the Beaufort Scale to find out the character of wind during these days. Record your observations carefully in your notebook. You could even draw small neat sketches to show the effect of the wind.
What are the elements of weather?
