When an old penny, lost in the grass, and turns green it is a__________
Pitanje 3
3.
Fireworks exploding in the night sky is a__________
Pitanje 4
4.
Frost forming on a pumpkin is a__________ .
Pitanje 5
5.
When an old Jack-O-lantern begins to rot it is a __________
Pitanje 6
6.
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7.
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8.
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9.
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10.
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11.
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12.
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13.
Pitanje 14
14.
Drugi mogući odgovor:
solubility
physical
density
reverse
atoms
chemical
water
Pitanje 15
15.
Use the words “atoms” and “molecules” to explain what happens when a
new material is formed during a chemical change.
Pitanje 16
16.
Describe a change you could see that could be either a chemical change
or a physical change. Be sure to explain how the change could fit into both categories.
Watch the Generation Genius video about Physical and Chemical Changes, (Click on the blue words) then, play the online review game to check your understanding.
GAME Link
Chemical changes happen only in things that are alive.
Tačno
Netačno
Physical changes happen only in things that are not alive.
Tačno
Netačno
The way atoms are fastened together changes during a chemical
change.
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Netačno
Atoms and molecules are both particles.
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Netačno
If a material changes color, it is proof that a chemical change is
happening.
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Netačno
Which is the best sign that a chemical change is happening?
heat
flames
sound
bubbles
Identify all of the chemical changes below.
plants making food
a tomato rotting
clouds forming
brownie baking
What kind of change or changes are happening when water goes over a
