Physical Science Review 6.1 Question Preview (ID: 15648)


Observing Chemical Change. TEACHERS: click here for quick copy question ID numbers.

Which of the following is not an example of chemical change?
a) cutting paper
b) rusting iron
c) an apple ripening
d) wood burning

A computer has mass and takes up space so it must be
a) matter
b) useful
c) chemical
d) changeable

Which of the following is not an indication of a chemical change?
a) a change in mass of a substance
b) production of a gas
c) formation of a precipitate
d) letting off heat or light

What kind of reaction usually occurs when food is cooked (energy is put in)?
a) endothermic
b) exothermic
c) physical
d) technical

During a chemical reaction the surrounding temperature increases. What kind of reaction was it?
a) exothermic
b) endothermic
c) physical
d) technical

A solid that forms from solutions during chemical reactions is called a
a) precipitate
b) solution solid
c) clump
d) brick

When bonds break and new bonds form a _______________ change occurs
a) chemical
b) physical
c) technical
d) material

braiding hair is a change in the appearance of the hair so it is a ___________________ change
a) physical
b) chemical
c) technical
d) material

What is the difference between a physical property and a chemical property?
a) a physical property can be observed without changing the substance
b) a chemical property can be observed without changing the substance
c) a physical property can only be observed by changing the substance
d) 2 of the choices

The study of how something that has mass and volume changes is
a) chemistry
b) a chemical property
c) a physical property
d) a precipitate

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