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WorksheetsClass 3 Exam Revision 1 Book 3 (Ch.2-4)
Total questions: 50
Worksheet time: 4hrs 10mins
Which of the following transfers heat faster?
A wooden chopstick
A plastic spoon
A metal spoon
A vase
Which of the following transfers heat the fastest?
A wooden chopstick
A plastic stick
A key
A handkerchief
What happens when we heat a metal object?
It expands.
It contracts.
It does not change.
None of the above
When does a metal object contract?
When we heat it
When we cool it
When it touches warm water
When it touches oil
Which of the following items are good conductors of heat? (There can be more than one answer.)
Iron fork
Copper wire
Wooden rod
Plastic fork
When the temperature rises, the liquid in a thermometer (a) .
(a) is not a good conductor of heat. People usually use it to make handles of cookers.
(a) transfers heat fast and is a good conductor of heat.
Iron and copper are good (a) of heat.
To hold hot objects safely, we can wear (a) .
Metal rods (a) when we heat them.
We can fix a dented table tennis ball by putting it into (a) water.
When an object is heated, heat is transferred from the (a) part to the (b) part.
Wood transfers heat slowly. It is a (a) conductor of heat.
There are small gaps between bridge joints. This is to prevent bridge joints from cracking under pressure when the construction materials (a) in hot weather.
The liquid level in a thermometer never change when the temperature changes.
True
False
Plastic is a good conductor of heat, so the handle of cookware is usually made of plastic.
True
False
Heat is transferred from the hotter part of an object to the colder part.
True
False
A good conductor of heat transfers heat more slowly.
True
False
The liquid in a thermometer expands and contracts to show the temperature changes.
True
False
Which of the following is not a source of weather information?
Textbook
The Internet
TV
Newspaper
Which tropical cyclone warning signal does not lead to class suspension?
10
9
8
3
1
Under which rainstorm warning signal should all people stay in a safe place?
The black rainstorm warning signal
The yellow rainstorm warning signal
The red rainstorm warning signal
The green rainstorm warning signal
Which weather condition is the best for outings?
Foggy
Sunny
Rainy
Cloudy
When is it dangerous to stand under a tree?
When it is sunny
When it is cloudy
When it is foggy
During a thunderstorm
When does heavy rain usually fall in Macau?
In spring
In summer
In autumn
In winter
Which of the following does NOT help us cope with the changing weather?
A raincoat
A dehumidifier
A heater
A piano
How did people in the past forecast the weather? (There can be more than one answer.)
They observed natural phenomena.
They observed animals’ behaviour.
They used magnetic compasses.
They counted the numbers of stars in the sky.
Which of the following tools can be used to measure the direction of wind?
Compass
Rain gauge
Wind vane
Thermometer
We should pay attention to the (a) conditions and choose proper clothing and activities.
When bad weather comes, the Macao Meteorological and Geophysical Bureau (SMG) issues (a) signals.
We should avoid doing (a) activities in bad weather.
The changing weather of different seasons (a) our life.
It is warm, (a) and foggy in spring in Macao.
Weather changes and affects the growth of plants. The natural scenery in Hong Kong changes with the (a) .
An (a) can help us cope with the hot weather.
In summer, we should wear clothes made of (a) as this material is breathable and soaks up sweat effectively.
We can use a humidifier to cope with the cold weather in winter.
True
False
Different electrical appliances help us cope with weather changes.
True
False
Clothes made of nylon fibres are not breathable, so they protect us from strong wind.
True
False
Days are longer than nights in (a) .
Clothes made of different materials have different properties. They help us cope with the weather conditions in different seasons.
True
False
We can get information of weather conditions from the weather forecast on a notice board.
True
False
When we tidy up our wardrobes, we can compress clothes in space bags to save space.
True
False
When it is humid, we can use a dehumidifier to reduce the moisture in the air.
True
False
The days in summer are short and the nights are long. The days in winter are long while the nights are short.
True
False
All people should not go to work under bad weather to avoid accidents.
True
False
There are four different tropical cyclone warnings issued by the Macao Metrorological and Geophysical Bureau (SMG).
True
False
People in the past observed the colour of animals to forecast the weather.
True
False
The average temperature in winter is low. It is also dry.
True
False
