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15
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Hardness determines the resistance that an object has to be... a) scratched b) broken
a) scratched
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15
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Elasticity determines how easily something recovers its original shape when it is deformed. True or false?
True. For example a hair band.
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15
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Solids have got a fixed shape and a fixed volume. True or false?
True
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15
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Define "pure substance". Give me 2 examples.
A pure substance is made up of only one type of matter. For example: sugar, salt, water.
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15
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Physical changes produce new substances. True or false?
False. Physical changes affect the state, position and shape of matter.
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15
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Honey has more viscosity than water. True or false?
True. The viscosity is the resistance of a liquid to flow.
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15
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Matter is anything that has volume, but not mass. True or False?
False. Matter has volume and mass.
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15
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Mass tells us... a) how much matter is in an object b) the space an object occupies.
A) Matter tells us how much matter is in an object.
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seesaw
Swap points!
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seesaw
Swap points!
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fairy
Take points!
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lifesaver
Give 10 points!
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15
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Liquids have got a fixed shape and a fixed volume.
False. Liquids haven't got a fixed shape.
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thief
Give points!
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fairy
Take points!
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fairy
Take points!
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banana
Go to last place!
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15
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Give me 3 examples of physical changes and 3 examples of chemical changes.
Physical changes: when ice melts, when you make something with plasticine. Chemical changes: when you cook food, when food spoils.
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trap
No points!
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gift
Win 10 points!
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gift
Win 15 points!
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thief
Give points!
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15
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Which state of matter can be compressed more easily? Solid, liquid or gas?
Gas.
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15
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Natural materials can be found in the nature and their origin can be... (there are 3).
Animal, vegetable (plant) and mineral origin.
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15
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Gases haven't got a fixed shape and a fixed volume.
True
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