Material
Lovely test at the end of the presentation
- 1.
what substance cannot be changed into it's original form?
- A.
Water
- B.
Choclate
- C.
Egg
- D.
Salt
Correct Answer
C. EggExplanation
once an egg is fried or boiled it cannot be reversed into it's original form.Rate this question:
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- 2.
what is a solid?
- A.
A runny substance
- B.
Stays in one place and can be held
- C.
Can move around easily
Correct Answer
B. Stays in one place and can be heldExplanation
a solid stays in one place because all the particles are packed together so don't have any space to move aroundRate this question:
-
- 3.
What is a liquid?
- A.
Stays in one place and can be held
- B.
A runny substance
- C.
They are often invisible
Correct Answer
B. A runny substanceExplanation
a liquid's particles are not so tightly packed together, so a liquid is a runny substance.Rate this question:
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- 4.
what is a gas?
- A.
Stays in one place and can be held
- B.
A runny substance
- C.
Can move about easily
Correct Answer
C. Can move about easilyExplanation
a gas because all the particles are spread out so a gas can move around quickly.Rate this question:
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- 5.
When a solid is turning into a liquid, what is this called?
- A.
Cooling
- B.
Melting
Correct Answer
B. MeltingExplanation
melting because the particles are slowly moving around to form a liquid.Rate this question:
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- 6.
When a liquid is cooled, what form is it?
- A.
Solid
- B.
Liquid
- C.
Gas
Correct Answer
A. SolidExplanation
solid because the particles in the liquid are getting frozen, so they are getting tightly packed together.Rate this question:
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- 7.
Which of the following is NOT a form irreversible change?
- A.
Heating
- B.
Melting
- C.
Burning
Correct Answer
B. MeltingExplanation
melting because you can cool the substance to make the substance into a solid again.Rate this question:
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- 8.
How to you dissolve two substances?
- A.
Mixing
- B.
Seperating
Correct Answer
A. MixingExplanation
you need to mix the two substances to make it dissolveRate this question:
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- 9.
How would you separate two mixtures?
- A.
Dissolving
- B.
Mixing
- C.
Sieving
Correct Answer
C. SievingExplanation
you would sieve to separate the mixtureRate this question:
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- 10.
When does a solid change into a liquid?
- A.
When it reaches its boiling point
- B.
When it reaches its melting point
Correct Answer
B. When it reaches its melting point -
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Current Version
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Jan 16, 2013Quiz Edited by
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Jul 07, 2010Quiz Created by
Sana_x
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