Science, Chapter 4-Part 2 Question Preview (ID: 44067)

States Of Matter.

Vegetable soup is an example of a ______________.
a) homogeneous mixture
b) heterogeneous mixture
c) compound
d) pure substance

Which of the following visual displays would be best for describing the percentages of different gases in the atmosphere?
a) circle graph
b) line graph
c) bar graph
d) any of the above

The factor being measured in an experiment is the ______________.
a) hypothesis
b) scientific law
c) variable
d) control

A millisecond is to a second as one is to ______________.
a) 1,000
b) 100
c) 10
d) 100,000

When Rutherford performed his metal foil experiment, he was surprised that most of the alpha particles __________.
a) were deflected by the foil
b) bounced back from the foil
c) were absorbed by the foil
d) passed straight through the foil

When someone stirs cocoa powder into hot water or hot milk, the cocoa changes from a ________________.
a) homogeneous mixture into a compound
b) homogeneous mixture into a non-uniform mixture
c) compound into a heterogeneous mixture
d) heterogeneous mixture into a homogeneous mixture

In which of the following situations would it NOT be wise to estimate?
a) the number of miles per gallon an automobile can provide
b) the time it would take to walk to the grocery store from home
c) the amount of food to prepare for twelve people
d) the amount of medicine to give a patient

To evaluate the observations you make, you must use ________.
a) a hypothesis
b) critical thinking
c) measurements
d) models

A cork is able to float on water because it is ___________.
a) a crystalline solid
b) equal in density to water
c) small in size
d) less dense than the water

The freezing point of a substance is _________the melting point of the same substance.
a) greater than
b) less than
c) equal to
d) unrelated to

Am amorphous solid
a) flows freely at any temperature
b) has no true melting point
c) has a repeating unit structure
d) becomes less viscuous as it cools

Kinetic energy is the ____________ of motion.
a) temperature
b) energy
c) heat
d) state

The measure of the average kinetic energy of the particles of a substance is the _____________.
a) temperature
b) heat
c) thermal energy
d) kinetic energy

The value of the boiling point of water on the Kelvin scale is _________ the value of the boiling point of water on the Celsius scale.
a) equal to
b) lower than
c) higher than
d) 10 times

Scientists must be impartial and not base their conclusions on __________.
a) opinions
b) evidence
c) models
d) experiments

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