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Physical Science Review 6.1
Test Description: Observing Chemical Change
Instructions: Answer all questions to get your test result.
1) Which of the following is not an example of chemical change?
A
wood burning
B
rusting iron
C
cutting paper
D
an apple ripening
2) A computer has mass and takes up space so it must be
A
matter
B
changeable
C
chemical
D
useful
3) Which of the following is not an indication of a chemical change?
A
production of a gas
B
a change in mass of a substance
C
formation of a precipitate
D
letting off heat or light
4) What kind of reaction usually occurs when food is cooked (energy is put in)?
A
physical
B
exothermic
C
endothermic
D
technical
5) During a chemical reaction the surrounding temperature increases. What kind of reaction was it?
A
technical
B
exothermic
C
physical
D
endothermic
6) A solid that forms from solutions during chemical reactions is called a
A
solution solid
B
precipitate
C
clump
D
brick
7) When bonds break and new bonds form a _______________ change occurs
A
chemical
B
material
C
technical
D
physical
8) braiding hair is a change in the appearance of the hair so it is a ___________________ change
A
material
B
physical
C
technical
D
chemical
9) What is the difference between a physical property and a chemical property?
A
2 of the choices
B
a physical property can be observed without changing the substance
C
a chemical property can be observed without changing the substance
D
a physical property can only be observed by changing the substance
10) The study of how something that has mass and volume changes is
A
a chemical property
B
chemistry
C
a precipitate
D
a physical property
*select an answer for all questions
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