To heat the particles of water so they gain enough energy to break free from the surface of the water and evaporate.. 2.3 Explain briefly what happens when condensation takes place.[r]
(1)Science5- March 13th 2020- Answer Key
Đáp án BT Science ngày 13 tháng năm 2020
ANSWER KEY- SCIENCE EXERCISES
I Choose words from the box to complete the sentences about condensation You will not need to use all the words
1 Condensation happens when a gas changes to a liquid
2 We know that condensation has happened when we drops of water on a surface 3 Condensation happens when water vapour touches a cooler surface This makes
the particles of water vapour cool down and lose energy 4 The opposite process to condensation is evaporation
II Look at the diagram of the water cycle
(2)Science5- March 13th 2020- Answer Key
Đáp án BT Science ngày 13 tháng năm 2020
2.1 Use the clues in the box to name parts A, B, C, D, E, F on the diagram
A Evaporation
B The source of energy (The Sun) C Condensation
D Cloud E Water/ rain F Snow
2.2 Why is the energy needed for evaporation?
To heat the particles of water so they gain enough energy to break free from the surface of the water and evaporate
2.3 Explain briefly what happens when condensation takes place
Condensation happens when the particles of a gas lose energy This makes the gas cool and change to a liquid
III Why is there no rain in Antarctica?