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WorksheetsProperties of Matter Review 1
Total questions: 21
Worksheet time: 11mins
Elephant Toothpaste demo creates bubbles showing it undergoes a
chemical change
physical change
Cutting up fire wood is an example of a
chemical change
physical change
Which of the following are indications of a chemical change? Check all that apply.
bubbles
has color
has an odor
color change
precipiate formed
Magnesium burning is a chemical change because
bubble are formed
it doesn't change color
the odor changes
light is produced
A mixture that has the same composition throughout because all the parts are mixed evenly.
heterogeneous mixture
homogeneous mixture
mixture
atom
Choose Physical or Chem property AND Evidence you observed to make your decision.
You blow dry your wet hair
Physical
Chemical
hair is no longer wet
hair is shiney
hair is straightened
Choose Physical or Chem property AND Evidence you observed to make your decision.
In baking biscuits and other quick breads, the baking powder reacts to release carbon dioxide bubbles. The carbon dioxide bubbles cause the dough to rise.
Physical
Chemical
The bread has risen
The bread has little holes in it where the carbon dioxide gas inflated it and then escaped because it is less dense than the bread dough
The bread is hard and no longer wet
Decide whether a physical or chemical change has occurred and give evidence for your decision.
Chewing food to break it down into smaller particles represents
Physical change
the smaller particles are still the same type of matter even though they look disgusting
starch changing into sugar
chemical change
food changes what it is made of when you break it into smaller pieces
Decide whether a physical or chemical change has occurred and give evidence for your decision.
In a fireworks show, the fireworks explode giving off heat and light.
Physical
Chemical
breaking up the chemicals stored in the fireworks into a powder
heat given off
colored light given off
Water, H2O is best described as
element
compound
homogeneous mixture
heterogeneous mixture
Oil and water form a homogeneous mixture.
true
false
You are
an element
a compound
a molecule
a mixture
How do you think you will do on the test tomorrow?
95 or 100 % Guarenteed!
85 - 94
75 - 84
I think I better study!
