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HIA International — Grade 8

Unit 1: Photosynthesis and the carbon cycle

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Unit 2: Properties of materials

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Unit 3: Forces and energy

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Unit 4: Maintaining life

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Unit 5: Reactivity

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Unit 6: Sound and space

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Unit 7: Genes and inheritance

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Unit 8: Rates of reaction

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Unit 9: Electricity

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Quiz

Checkpoint Grade 8 Unit 2 – 2.4 The Water Cycle

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Water Cycle Checkpoint Chemistry quiz set 2: free practice for Cambridge Checkpoint (chemistry). Work through this Water Cycle Checkpoint Chemistry quiz set 2 and get instant feedback on every answer. If you get stuck, review the 14.4 The water cycle lesson. More practice: Cambridge Checkpoint (chemistry) — all units. Syllabus: Cambridge Lower Secondary programme.

  • Questions count: 50
  • Passing grade: B+
  • Time limit:
Start Quiz
1.
Which statement correctly describes water vapour?
water falling from clouds
water flowing over land
water stored or moving below Earth's surface
water in the gas state
2.
Which statement correctly describes precipitation?
water in the gas state
water stored or moving below Earth's surface
water falling from clouds
water flowing over land
3.
Which statement correctly describes surface run-off?
water in the gas state
water stored or moving below Earth's surface
water flowing over land
water falling from clouds
4.
Which statement correctly describes groundwater?
water in the gas state
water falling from clouds
water flowing over land
water stored or moving below Earth's surface
5.
Which definition should be paired with water vapour?
water stored or moving below Earth's surface
water in the gas state
water falling from clouds
water flowing over land
6.
Which of these is the FIRST step in the correct order?
water forms clouds
water returns by surface run-off and groundwater
water enters the atmosphere as water vapour
precipitation falls
7.
Which step comes immediately after "water forms clouds"?
water enters the atmosphere as water vapour
water returns by surface run-off and groundwater
precipitation falls
8.
Which practical work belongs to The Water Cycle?
Use observations to classify materials and evaluate a particle model
Measure temperature and volume while heating water and identify patterns in results
Model particles physically to represent melting, freezing, evaporation and condensation
Interpret a water-cycle diagram and connect evaporation, condensation, precipitation and run-off
9.
Wind blows from the sea (P) over a mountain range. The slope facing the sea (Q) gets 2400 mm of rain a year, but the far side (S) gets only 300 mm. Which explanation fits best?
Dr Dabour Hub Academy - figure 1
Air warms as it rises over Q, so the vapour evaporates again before S
Rain at S soaks straight into the ground, so the gauges there miss it
Air cools as it rises over Q, so its vapour condenses and falls there
The sea at P is too salty for its water to evaporate as far as S
10.
A water company measured evaporation from a reservoir each month, along with the mean air temperature. Which conclusion is best supported by the graph?
Dr Dabour Hub Academy - figure 2
Most water evaporates in the warmest months, but some evaporates all year
Water only evaporates in months when the air is above 20 °C
Evaporation and temperature are not linked, as both change each month
Evaporation is highest in winter, when the reservoir is fullest
11.
The boxes show water particles at four places in the water cycle. Which change between boxes shows what happens when a cloud forms, and what happens to energy?
Dr Dabour Hub Academy - figure 3
X to Y, with energy given out
W to X, with energy taken in
X to Y, with energy taken in
Y to Z, with energy given out
12.
The bottle garden shown has been sealed for three years without watering, yet the plant is healthy and drops form on the glass each morning. Which two processes put water vapour into the air inside the bottle?
Dr Dabour Hub Academy - figure 4
Condensation on the glass and precipitation onto the soil
Infiltration into the soil and run-off down the glass
Transpiration from the leaves and condensation on the glass
Evaporation from the soil and transpiration from the leaves
13.
The same storm fell on two nearby areas: a city with concrete and drains, and a forest. The graph shows the rain and the level of a stream in each area. Which explanation of the difference is best?
Dr Dabour Hub Academy - figure 5
More rain fell on the city, so its stream rose higher
Less water infiltrates in the city, so more runs off quickly into the stream
The forest stream rose later because its water evaporated first
Trees make more precipitation, so the forest stream keeps rising for longer
14.
The chart shows where 1250 mm of yearly rain goes on a hillside before and after its forest was cut down. Which prediction is best supported by the data?
Dr Dabour Hub Academy - figure 6
The river downstream will carry less water after heavy rain
Groundwater will increase, because infiltration rises after clearing
Floods downstream become more likely, and less vapour returns to the air
More clouds will form over the hill, because transpiration increases
15.
Scientists measured the water lost as vapour from the leaves of a large mango tree during one sunny day. Which statement is best supported by the graph?
Dr Dabour Hub Academy - figure 7
Transpiration is fastest at night, when the air is coolest
The tree loses the same amount of water vapour every hour
Transpiration stops at 8 hours, when the Sun first rises
Transpiration is fastest around midday, when the Sun supplies most energy
16.
Hydrologists measured all the water entering and leaving a lake in one year. What happened to the amount of water stored in the lake?
It rose by 2 million m³
It fell by 2 million m³
It fell by 13 million m³
It stayed exactly the same
17.
Petroleum jelly stops water vapour passing through. Kavya spread it on different surfaces of four similar leaves and hung them up. Which conclusion do her results support?
Most water vapour is lost through the upper surface of the leaf
Leaves lose equal amounts of water vapour from both surfaces
Most water vapour is lost through the lower surface of the leaf
Leaves only lose water vapour when they are still on the plant
18.
Which statement is best supported by the data about three seas?
Where evaporation greatly exceeds rainfall, the sea is saltier
Where rainfall is highest, the sea is saltiest
Salt evaporates from seas, so hot seas lose most salt
Rain falling into a sea adds salt to it
19.
The table shows data for a village well that takes groundwater from the rocks. What is the most likely reason the water is getting deeper below the surface?
Rainfall has fallen sharply, so no water infiltrates
The groundwater is evaporating from the rocks underground
The well water is condensing into the rocks as they cool
More water is pumped out than infiltration puts back
20.
A weather station measures evaporation as the fall in water level in an open pan. Which reading should be treated with caution, and why?
Friday, because it was the hottest day of the week
Monday, because it was the first reading taken
Wednesday, because rain fell into the pan and replaced water
Thursday, because it was cooler than Tuesday
21.
Using the table, which store holds the most fresh water that is in the liquid state?
Groundwater
Lakes and rivers
Ice caps and glaciers
Oceans and seas
22.
Two containers side by side in a school field recorded different amounts of rain in the same week. Why is the standard rain gauge the more accurate measurement?
The funnel makes more rain fall into the gauge than onto the tray
The funnel and bottle stop the collected rain from evaporating
The tray collects rain that infiltrates up from the soil below
Rainwater condenses inside the bottle, so the gauge adds extra water
23.
As a large storm cloud grows, the air inside it becomes slightly warmer than the air around it. Which process explains this?
Water droplets evaporating inside the cloud give out energy
Rain falling from the cloud takes in energy from the Sun
Water vapour in the cloud takes in energy as it rises
Water vapour condensing into droplets gives out energy
24.
On a very cold, dry, sunny day, the snow on a mountain top gets thinner even though the air stays well below 0 °C and no meltwater is seen. Where does the water go?
The snow melts and the water infiltrates the rock at once
The snow sublimes straight into water vapour in the air
The snow condenses into clouds above the mountain
The snow turns into groundwater without changing state
25.
Ibrahim wants to show that plants add water vapour to the air. Which plan would give the clearest evidence?
Bag a leafy shoot and a bare stick in the same pot; compare the drops
Tie a clear bag over a leafy shoot and look for drops the next morning
Water a plant heavily and measure how much drains out of the pot
Put a plant in a dark cupboard and see whether its leaves wilt
26.
Early on cold mornings, droplets run down the inside of the glass in a greenhouse full of tomato plants. Where does most of this water come from?
Rain soaking through the glass from outside
The glass melting slightly as it warms in the sun
Water vapour from transpiration condensing on the cold glass
Groundwater rising up the glass by infiltration
27.
In spring, ice from a glacier turns into water that flows downhill into a river. Which two stages of the water cycle are these?
Condensation, then infiltration
Sublimation, then precipitation
Freezing, then evaporation
Melting, then run-off
28.
Each option pairs a stage of the water cycle with a particle description. Which pairing is correct?
Condensation – gas particles speed up and spread out
Evaporation – surface particles gain energy and escape
Precipitation – gas particles turn to solid as they fall
Transpiration – vapour particles enter leaves as liquid
29.
Each option pairs a human activity with its effect on the water cycle. Which pairing is correct?
Paving over gardens – more run-off
Planting a forest – less transpiration
Over-pumping wells – groundwater rises
A new reservoir in a hot area – less evaporation
30.
Each option pairs a process in the water cycle with an energy change. Which pairing is correct?
Sea water evaporating – energy given out
Leaves transpiring – energy given out
Glacier ice melting – energy given out
Cloud droplets forming – energy given out
31.
Each option pairs an observation with what it shows about the water cycle. Which pairing is correct?
A puddle shrinking on a cool day – boiling
A salt crust around a dried lake – salt evaporated
Drops inside a bag tied over leaves – transpiration
A muddy river after a storm – more infiltration
32.
Which term is described as: water in the gas state?
precipitation
surface run-off
groundwater
water vapour
33.
Which term is described as: water falling from clouds?
water vapour
groundwater
precipitation
surface run-off
34.
Which term is described as: water flowing over land?
water vapour
groundwater
surface run-off
precipitation
35.
Which term is described as: water stored or moving below Earth's surface?
water vapour
surface run-off
groundwater
precipitation
36.
Water soaking down into the soil and rocks is called _____.
transpiration
infiltration
condensation
precipitation
37.
Water vapour lost from the leaves of plants is called _____.
infiltration
precipitation
surface run-off
transpiration
38.
When water vapour condenses to form a cloud, energy is _____ the water particles.
given out by
taken in by
created inside
destroyed inside
39.
Snow is precipitation in which water falls to the ground as a _____.
invisible gas
liquid droplet
frozen solid
cloud of vapour
40.
Transpiration and evaporation both change liquid water into water vapour, and both take in energy. True or false?
False – transpiration gives out energy
False – transpiration changes gas into liquid
True – the statement is correct
True, but only when it is raining
41.
Precipitation always involves water changing state as it falls from the cloud to the ground. True or false?
False – rain or snow can fall with no change
True – falling water always turns into ice
True – rain is formed by evaporation as it falls
False – precipitation is gas falling from clouds
42.
Water that infiltrates the soil can reach a river weeks later by moving slowly through rocks as groundwater. True or false?
False – infiltrated water never moves again
False – groundwater can only leave by evaporating
True, but only if the rocks are frozen
True – the statement is correct
43.
When mountain snow melts in spring, the water particles take in energy and the forces between them are partly overcome. True or false?
False – melting snow gives out energy
True – the statement is correct
False – the forces are completely overcome
True, but only if the snow is salty
44.
If a town pumps groundwater out faster than rain can infiltrate to replace it, the groundwater store will shrink. True or false?
False – groundwater is refilled by evaporation
False – groundwater can never run low
True – the statement is correct
True, but only near the coast
45.
When hailstones form inside a cloud, liquid water freezes and gives out energy. True or false?
True – freezing gives out energy
False – freezing takes in energy
False – hail forms by evaporation
True, but only once the hail hits the ground
46.
Air over a desert usually holds less water vapour than air over a rainforest, partly because deserts have few plants to transpire. True or false?
False – deserts have the most transpiration
False – plants take vapour out of the air
True, but only because deserts are cold
True – the statement is correct
47.
Run-off after heavy rain is usually faster on a steep, bare slope than on a gentle, forested slope. True or false?
False – trees speed up run-off
True – the statement is correct
False – steep slopes stop run-off
True, but only when the rain is salty
48.
Evaporation from the sea only happens in hot countries. True or false?
True – water needs 100 °C to evaporate
True, but only during the day
False – evaporation happens at any temperature
False – the sea never evaporates at all
49.
At night, with no sunlight, the whole water cycle stops until the Sun rises. True or false?
True – every stage is driven by the Sun
True, but only in winter
False – the water cycle only happens at night
False – rivers still flow and rain can still fall
50.
As water vapour rises into cooler air, its particles slow down and come closer together, forming tiny droplets. True or false?
True – the statement is correct
False – the particles speed up in cool air
False – cooling spreads particles apart
True, but only above the sea
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Part of Unit 2: Properties of materials — see every lesson and quiz in this unit.
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