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class-4-Science-Weather -1 1 / 20Changes in weather are the interaction of: Storm surges Tornadoes Clouds Air masses 2 / 207Changes in weather are caused by the interaction of: Air masses Fronts Anticyclones Cyclones 3 / 20Which of the following is the cause of the change of seasons? The process called rain-shadow effect 7The sizes and shapes of land-surface features The tilt of the earth's axis The rotation of the earth 4 / 20As surface currents move, They bring warm temperatures to the West Coast They influence the amount of solar energy an area receives They release heat quickly They carry warm or cool water to different locations 5 / 20When droplets in a cloud reach a certain size, they: Form a cold front Change the climate of an area Cause an electric discharge 6 / 20Which of the following is NOT true of an ice age? Ice sheets advance and get bigger Ice forms in high latitudes and moves towards lower latitudes A mixture of periods of cold and periods of warmth 7There have been a few major ice ages 7 / 20What happens when the rate of evaporation equals the rate of condensation? Precipitation occurs The humidity decreases Clouds form The dew point is reached 8 / 20The short-term state of the atmosphere is called: Climate Weather Dew point Water cycle 9 / 20Which of the following weather conditions causes the most deaths? Thunderstorm Cyclone Rain Hail 10 / 20What causes changes in weather? Interaction of air mass Cloud formation Water evaporetion Humidity of air 11 / 20Earth's natural heating process is called An ice age 7Global warming The Milankovitch theory The greenhouse effect 12 / 20When temperatures fall below 0°C, what forms in a cloud? Gases 7Dew Water droplets Ice crystals 13 / 20The sun's energy causes water to change states through: Weather Relative humidity The water cycle Ice crystals 14 / 20Which of the following decreases as elevation increases? Clouds Precipitation Latitude Temperature 15 / 20What do scientists use to express the amount of water vapour in the air? Dew point Vapour pressure Relative humidity Relative point 16 / 20The rate of evaporation of water is slower when: The humidity of the surrounding air is higher The area of exposed surface is greater The temperature is higher The wind is stronger 17 / 20Global warming may be caused by: A decrease in carbon dioxide concentrations An increase in carbon dioxide concentrations Changes in weather patterns The tilt of the earth's axis. 18 / 20What is a cloud made of? Snow Water droplets Gases Warm air 19 / 20What is water cycle? 7Evaporatin of water Air pressure sinking and then rising Water droplets forming on surfaces7 Water moving between the atmosphere, the land, and the oceans 20 / 20Which of the following statements is NOT true about winds? Winds carry solar energy to and from different locations Winds move in unpredictable patterns across the earth's surface Winds carry evaporated water away from the ocean surface Winds blow from areas of high pressure to areas of low pressure Your score is LinkedIn Facebook Twitter VKontakte
class-4-Science-Weather -1
1 / 20
Changes in weather are the interaction of:
2 / 20
7Changes in weather are caused by the interaction of:
3 / 20
Which of the following is the cause of the change of seasons?
4 / 20
As surface currents move,
5 / 20
When droplets in a cloud reach a certain size, they:
6 / 20
Which of the following is NOT true of an ice age?
7 / 20
What happens when the rate of evaporation equals the rate of condensation?
8 / 20
The short-term state of the atmosphere is called:
9 / 20
Which of the following weather conditions causes the most deaths?
10 / 20
What causes changes in weather?
11 / 20
Earth's natural heating process is called
12 / 20
When temperatures fall below 0°C, what forms in a cloud?
13 / 20
The sun's energy causes water to change states through:
14 / 20
Which of the following decreases as elevation increases?
15 / 20
What do scientists use to express the amount of water vapour in the air?
16 / 20
The rate of evaporation of water is slower when:
17 / 20
Global warming may be caused by:
18 / 20
What is a cloud made of?
19 / 20
What is water cycle?
20 / 20
Which of the following statements is NOT true about winds?
Your score is
class-4-Science-Weather -2 1 / 15Stream-like movements of water that have a large effect on an area's climate are: Dew Storm surges Water vapour Surface currents 2 / 15Bleaching powder helps in clearing water by acting on: Germs Floating particles Foul smells Mud 3 / 15Seasons are caused by: The tilt of the earth's axis The greenhouse effect The rain-shadow effect Ocean currents 4 / 15At higher elevations, There is no rain-shadow effect The temperature of the air is lower The dew point is higher The temperature of the air is higher 5 / 15One reason for global warming may be: Increasing greenhouse gases Decreasing greenhouse gases Decreasing global gases Increasing global gases 6 / 15Humidity is: The temperature below dew point The continuous movement of water The amount of water vapour in the air When a gas becomes a liquid 7 / 15When air is nearly saturated and temperature drops, what is reached? Condensation Dew point Precipitation Humidity 8 / 15Anaya 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 is same the rate of evaporation To find out whether the area of exposed surface does not affect the rate of evaporation To find out whether the area of exposed surface affects the rate of evaporation A and C 9 / 15Evaporation increases with: Increases in the amount of water Increases in the area of exposure Decreases in the temperature Decreases in the area of exposure 10 / 15Water is safe for human consumption only when it is free from: Micro-organisms All of the above Unwanted smells Floating substances 11 / 15The amount of bleaching powder for purifying water should be: 1 teaspoon in a glass 1 teaspoon in a bucket and 3 teaspoons of this in a glass 1 teaspoon in a bucket 1 teaspoon in a glass and 3 teaspoons of this in a bucket 12 / 15In the process of boiling: Floating particles settle down Foul smells escape Colour disappears Germs get killed 13 / 15Washing clothes near a water source is harmful because the dirt and soap released: Are responsible for doing all of the above Flow into the water Are left behind to create slush Are absorbed by the soil to reach sub-soil water 14 / 15The distance north or south from the equator is called Elevation Topography Latitude The rain-shadow effect 15 / 15Land breeze blows during: Nighttime Noon time Morning Daytime Your score isThe average score is 0% 0% Restart quiz
class-4-Science-Weather -2
1 / 15
Stream-like movements of water that have a large effect on an area's climate are:
2 / 15
Bleaching powder helps in clearing water by acting on:
3 / 15
Seasons are caused by:
4 / 15
At higher elevations,
5 / 15
One reason for global warming may be:
6 / 15
Humidity is:
7 / 15
When air is nearly saturated and temperature drops, what is reached?
8 / 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:
9 / 15
Evaporation increases with:
10 / 15
Water is safe for human consumption only when it is free from:
11 / 15
The amount of bleaching powder for purifying water should be:
12 / 15
In the process of boiling:
13 / 15
Washing clothes near a water source is harmful because the dirt and soap released:
14 / 15
The distance north or south from the equator is called
15 / 15
Land breeze blows during:
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