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15
×
Fill in the blank. Matter can neither be _______________ nor destroyed.
created
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×
lifesaver
Give 20 points!
Oops!
×
shark
Other team loses 10 points!
Okay!
×
shark
Other team loses 20 points!
Okay!
×
baam
Lose 20 points!
Oops!
15
×
A change in the size, shape or state of matter with no new material being formed. Physical or chemical change?
physical change
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20
×
Fill in the blank: A chemical _____________________ is a specific example of one or more chemical changes.
reaction
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20
×
How are ice and water the same if they are in two different states of matter?
They are the same chemical formula - H2O.
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15
×
True or False? If matter looks different, it has definitely undergone a chemical change.
False
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seesaw
Swap points!
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gold
Win 50 points!
Okay!
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fairy
Take points!
5
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15
20
25
×
lifesaver
Give 25 points!
Oops!
15
×
Fill in the blank: A physical change is a change in size, _____________, or state of matter.
shape
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15
×
True or False? Dissolving is a physical change.
True
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eraser
Reset score!
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gift
Win 25 points!
Okay!
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gift
Win 15 points!
Okay!
×
baam
Lose 25 points!
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trap
No points!
Oops!
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rocket
Go to first place!
Okay!
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fairy
Take points!
5
10
15
20
25
×
baam
Lose 25 points!
Oops!
25
×
When water freezes we know that the volume increases. Explain how the volume can increase but no new material has been created.
the molecules have just spread apart from one another
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15
×
True or False? In a physical change, new matter is always created.
False
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20
×
Identify two catalysts mentioned in the book.
adding salt and heat
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15
×
Fill in the blank. The mass of matter before a chemical change must ____________ the mass afterwards.
equal
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25
×
How do chemical changes create new substances?
breaking chemical bonds and creating new ones
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