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TCAP Prep 7
Test Description: Various questions to review for TCAP
Instructions: Answer all questions to get your test result.
1) Which one of the following does not represent a mixture
A
distilled water
B
water from a freshwater lake
C
grape juice
D
a popsicle
2) A mixture composed of substances that are spread evenly throughout is called
A
a suspension
B
a liquid
C
heterogeneous
D
homogeneous
3) Reactivity is the ability of substances to combine and form new substances. What substance listed below exhibits chemical reactivity when combined with vinegar?
A
baking soda
B
water
C
sugar
D
cooking oil
4) In what way is a successful experiment never the final step in a scientific investigation?
A
scientists have to keep investigating so that they have work to do
B
the experiment is not complete until a new theory is proposed
C
the results may later be proven wrong
D
the data from an experiment lead to new questions and further investigations
5) Which of the following is not part of Darwin's theory of natural selection?
A
individuals that have favorable traits are more likely to survive and reproduce
B
more offspring are born than will live to become adults
C
all organisms within a species have the same number of offspring
D
individuals in a population are different from one another. some of those differences are genetic traits
6) Which process causes substances to react to form one or more new substances?
A
physical change
B
evaporation
C
chemical change
D
freezing
7) Which of these is the appropriate SI unit for measuring a chemical to place in a test tube during a lab experiment?
A
pound
B
ounce
C
gram
D
kilogram
8) The Law of Universal Gravitation states that the movement of the planets around the sun depends on
A
the speed at which the planet spins on its axis
B
the composition of the planet
C
the planet's mass and distance from the sun
D
the number of moons a planet has
9) The ability of substances to combine and form new substances is called
A
physical reactivity
B
malleability
C
chemical reactivity
D
solubility
10) Which of these would not be an example of technology?
A
detecting an avalanche by hearing it from a distance
B
using electric currents to study magnetism
C
recording changes in the rain forest by comparing satellite photos
D
monitoring a tornado with tiny radio transmitters
*select an answer for all questions
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