competitions & quizzes...pit your wits & win with Planet Science
temperature quiz
THE HEAT IS ON...
Good luck!
01 Where have the hottest and coldest temperatures on Earth been recorded?
Libya and Antarctica
Arizona and Alaska
Israel and Siberia
Australia and Canada
02 Mount Everest is nearly 9 kilometres closer to the Sun than sea level, yet the temperature is about -36 C. How is this possible?
The ice and snow on the summit lowers the temperature keeping it cold, just like a fridge.
The sunlight has to heat the larger area of the sloping mountain, so the heat is more spread out and the mountain is cooler.
Greater winds develop at this height and keep the temperatures down.
It’s further away from the centre of the Earth which has a warming effect on regions at sea level.
03 A temperature of 1,300°C is needed to:
Smelt steel
Fire pots
Cremate bodies
Make glue
04 At what temperature would your blood freeze?
0°Cy
-3°C
-15°C
-84°C
5 The Universe has cooled since the big bang, leaving space at what temperature?
1 million°C
1,400°C
0°C
-270°C
6 Which of the following creatures goes out in the 46°C midday Saharan sun – and survives?
Silver ant
Desert tortoise
Kangaroo rat
Scorpion
7 Which is the hottest?
Lightning bolt
Surface of the Sun
Centre of the Earth
Volcanic lava
8 What happens to a banana when you put it in the fridge?
It thinks winter has arrived and begins to germinate
It goes black because the cells are damaged by the cold
It stays fresher for longer because enzyme activity slows
It ceases to smell because it only gives off gas in sunlight
9 Why do ice cubes crack when placed in water?
There is more pressure in water than in air, and the pressure of the water shatters the ice cube
Tiny cracks in the surface fill with water. This water freezes immediately and expands, cracking the ice cube.
The ice expands as it turns into water shattering the ice cube from the inside
Chemicals contained in the ice react with the water releasing energy in small explosions
10 Which creature can survive being frozen and defrosted?
Wood frog
Shrimp
Cockroach
Snail
Answers:
1= Libya and Antarctica 2=The sunlight has to heat the larger area of the sloping mountain, so the heat is more spread out and the mountain is cooler. 3= Cremate Bodies 4= -3c 5= -270c 6= Silver Ant 7= Lightning Bolt 8= It goes black 9= Tiny cracks in the surface fill with water 10= Wood Frog
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