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class-4-Science-Weather -1 1 / 20 The sun's energy causes water to change states through: Relative humidity Weather The water cycle Ice crystals 2 / 20 When droplets in a cloud reach a certain size, they: Form a cold front Cause an electric discharge Change the climate of an area 3 / 20 Which of the following weather conditions causes the most deaths? Hail Thunderstorm Rain Cyclone 4 / 20 Which of the following statements is NOT true about winds? Winds carry evaporated water away from the ocean surface Winds blow from areas of high pressure to areas of low pressure Winds carry solar energy to and from different locations Winds move in unpredictable patterns across the earth's surface 5 / 20 What do scientists use to express the amount of water vapour in the air? Dew point Relative humidity Vapour pressure Relative point 6 / 20 What causes changes in weather? Humidity of air Water evaporetion Cloud formation Interaction of air mass 7 / 20 What is a cloud made of? Snow Water droplets Warm air Gases 8 / 20 As surface currents move, They carry warm or cool water to different locations They bring warm temperatures to the West Coast They release heat quickly They influence the amount of solar energy an area receives 9 / 20 Changes in weather are the interaction of: Air masses Tornadoes Storm surges Clouds 10 / 20 Earth's natural heating process is called The greenhouse effect 7Global warming An ice age The Milankovitch theory 11 / 20 The short-term state of the atmosphere is called: Water cycle Weather Climate Dew point 12 / 20 Which of the following decreases as elevation increases? Precipitation Latitude Clouds Temperature 13 / 20 When temperatures fall below 0°C, what forms in a cloud? Gases Ice crystals 7Dew Water droplets 14 / 20 Which of the following is NOT true of an ice age? Ice forms in high latitudes and moves towards lower latitudes 7There have been a few major ice ages A mixture of periods of cold and periods of warmth Ice sheets advance and get bigger 15 / 20 Which of the following is the cause of the change of seasons? The tilt of the earth's axis 7The sizes and shapes of land-surface features The rotation of the earth The process called rain-shadow effect 16 / 20 What is water cycle? Water droplets forming on surfaces7 Water moving between the atmosphere, the land, and the oceans Air pressure sinking and then rising 7Evaporatin of water 17 / 20 The rate of evaporation of water is slower when: The wind is stronger The area of exposed surface is greater The temperature is higher The humidity of the surrounding air is higher 18 / 20 Global warming may be caused by: Changes in weather patterns A decrease in carbon dioxide concentrations The tilt of the earth's axis. An increase in carbon dioxide concentrations 19 / 20 7Changes in weather are caused by the interaction of: Cyclones Air masses Fronts Anticyclones 20 / 20 What happens when the rate of evaporation equals the rate of condensation? The dew point is reached The humidity decreases Clouds form Precipitation occurs Your score is LinkedIn Facebook Twitter VKontakte
class-4-Science-Weather -1
1 / 20
The sun's energy causes water to change states through:
2 / 20
When droplets in a cloud reach a certain size, they:
3 / 20
Which of the following weather conditions causes the most deaths?
4 / 20
Which of the following statements is NOT true about winds?
5 / 20
What do scientists use to express the amount of water vapour in the air?
6 / 20
What causes changes in weather?
7 / 20
What is a cloud made of?
8 / 20
As surface currents move,
9 / 20
Changes in weather are the interaction of:
10 / 20
Earth's natural heating process is called
11 / 20
The short-term state of the atmosphere is called:
12 / 20
Which of the following decreases as elevation increases?
13 / 20
When temperatures fall below 0°C, what forms in a cloud?
14 / 20
Which of the following is NOT true of an ice age?
15 / 20
Which of the following is the cause of the change of seasons?
16 / 20
What is water cycle?
17 / 20
The rate of evaporation of water is slower when:
18 / 20
Global warming may be caused by:
19 / 20
7Changes in weather are caused by the interaction of:
20 / 20
What happens when the rate of evaporation equals the rate of condensation?
Your score is
class-4-Science-Weather -2 1 / 15 The amount of bleaching powder for purifying water should be: 1 teaspoon in a glass 1 teaspoon in a glass and 3 teaspoons of this in a bucket 1 teaspoon in a bucket and 3 teaspoons of this in a glass 1 teaspoon in a bucket 2 / 15 Evaporation increases with: Decreases in the temperature Increases in the amount of water Decreases in the area of exposure Increases in the area of exposure 3 / 15 Washing clothes near a water source is harmful because the dirt and soap released: Are absorbed by the soil to reach sub-soil water Are left behind to create slush Flow into the water Are responsible for doing all of the above 4 / 15 Bleaching powder helps in clearing water by acting on: Foul smells Floating particles Mud Germs 5 / 15 When air is nearly saturated and temperature drops, what is reached? Condensation Dew point Precipitation Humidity 6 / 15 Water is safe for human consumption only when it is free from: Floating substances Unwanted smells All of the above Micro-organisms 7 / 15 Humidity is: The temperature below dew point The continuous movement of water When a gas becomes a liquid The amount of water vapour in the air 8 / 15 Stream-like movements of water that have a large effect on an area's climate are: Surface currents Water vapour Dew Storm surges 9 / 15 Land breeze blows during: Morning Nighttime Daytime Noon time 10 / 15 Seasons are caused by: The rain-shadow effect Ocean currents The tilt of the earth's axis The greenhouse effect 11 / 15 The distance north or south from the equator is called Topography The rain-shadow effect Elevation Latitude 12 / 15 At higher elevations, The temperature of the air is higher The temperature of the air is lower There is no rain-shadow effect The dew point is higher 13 / 15 One reason for global warming may be: Increasing greenhouse gases Decreasing global gases Decreasing greenhouse gases Increasing global gases 14 / 15 Anaya carried out an experiment. She poured 200 ml of water into each of the three containers shown below. She put the containers under the sun and recorded the time taken for the water to evaporate completely from each container. The aim of the experiment was: To find out whether the area of exposed surface affects the rate of evaporation A and C To find out whether the area of exposed surface does not affect the rate of evaporation To find out whether is same the rate of evaporation 15 / 15 In the process of boiling: Germs get killed Floating particles settle down Colour disappears Foul smells escape Your score is The average score is 0% 0% Restart quiz
class-4-Science-Weather -2
1 / 15
The amount of bleaching powder for purifying water should be:
2 / 15
Evaporation increases with:
3 / 15
Washing clothes near a water source is harmful because the dirt and soap released:
4 / 15
Bleaching powder helps in clearing water by acting on:
5 / 15
When air is nearly saturated and temperature drops, what is reached?
6 / 15
Water is safe for human consumption only when it is free from:
7 / 15
Humidity is:
8 / 15
Stream-like movements of water that have a large effect on an area's climate are:
9 / 15
Land breeze blows during:
10 / 15
Seasons are caused by:
11 / 15
The distance north or south from the equator is called
12 / 15
At higher elevations,
13 / 15
One reason for global warming may be:
14 / 15
Anaya carried out an experiment. She poured 200 ml of water into each of the three containers shown below. She put the containers under the sun and recorded the time taken for the water to evaporate completely from each container.
The aim of the experiment was:
15 / 15
In the process of boiling:
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