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REVISION (GRADE 2)
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How does ice turn into water?
When it melts
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What is the characteristic of polluted air?
Polluted air is dirty and smelly.
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What is this building called?
The Great Pyramid of Giza.
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Why does a swimmer need to leave his head up the water?
To take in air / To breathe
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What makes swimming ring float on the water?
The air inside
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What are the uses of air?
Air is needed for breathing, for burning, for moving things
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Why can't we see air?
Because it has no colour and no smell.
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What is this building called?
The Taj Mahal
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How are these rocks different?
They are different in textures.
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TRUE or FALSE. These rocks are different in textures.
FALSE
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What is the air we breathe out?
Carbon dioxide/ CO2
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What makes the air polluted?
Smoke and dust from factories and cars.
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[Sailboat, campfire, tyre] Which thing needs air for burning?
Campfire
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What happens when honey is mixed with water?
It changes the colour of the water.
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How are these rocks different?
They are different in sizes.
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What is the ground made of?
Rocks and soil
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What is produced when water boils?
Steam
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Where can we find water? Mention two water resources.
Lake, sea, pond, river
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What are slates and marbles used for?
To build buildings, roofs, tiles
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How are these rocks different?
They are different in shapes.
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[ Balloon, windmill. candle] Which thing needs air to work?
Balloon
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What rock was used to build this building?
Limestone
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How is ice produced?
When water freezes, it turns into ice.
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Mention two places where rocks are found!
Cave, beach, mountain. etc.
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How is steam produced?
When water boils, it produces steam.
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Mention 3 things made of rocks.
Building, bridge, statue, wall, etc.
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What is this building made of?
White marble
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Why is polluted air harmful?
It can make us sick.
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What do plants get from the soil?
Water and nutrients and support
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What is wind?
Wind is moving air.
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What do living things need to survive?
Air, water, food
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What do we call the air that we breathe in?
Oxygen
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Which part of a plant is in the soil?
The roots
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What do plants need to grow?
Air, water, sunlight, soil
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What are the examples of metamorphic rocks?
Slates and marbles
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What characteristic of water is shown by the picture?
Water takes the shape of its container.
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