AnswersEA Academy Online Learning and Digital Citizenship Elective SpringUnit Test

Taking Tests Answers

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21
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It is best to schedule study time when a student is

A
socializing with friends.
B
tired.
C
alert.
D
watching television shows.
22
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Which is a correct statement about common types of test questions?

A
There is little difference in how these types of questions should be approached.
B
Most can be approached by determining relationships between sets of ideas.
C
Most can be approached by determining whether an idea or fact is accurate.
D
Each type of question should be approached with a specific strategy.
23

Two chemicals react in an endothermic reaction. What can be known about this reaction?

A
Heat is absorbed because the old substance needs more energy to break its bonds.
B
Heat is released because the old substance needs less energy to break its bonds.
C
A precipitate will form as a result of the reaction.
D
A gas will form as a result of the reaction.
24

Before turning in a test, it would be best to

A
rush through the test and panic.
B
make sure that some answers are incomplete.
C
check how quickly the test was completed.
D
check the grammar and double check the work.
25

When sitting down to take a test, which is the best first step?

A
review the answers
B
proofread your work
C
preview the test
D
check your grammar
26

Reggie and Charlotte are baking oatmeal cookies. They dip the baked cookies in melted chocolate. The chocolate cools to form a hardened coating. Reggie argues the entire chocolate-covered cookie has undergone a chemical change. Charlotte disagrees, saying only the original oatmeal cookie has undergone a chemical change, not the chocolate coating.

A
Reggie, because baking and melting cause bonds to be broken, leading to a chemical change.
B
Reggie, because objects that are heated always undergo chemical changes.
C
Charlotte, because melting objects only sometimes cause a chemical change.
D
Charlotte, because baking causes a chemical change, but melting objects is a non-chemical change.
27

When baking soda and vinegar react, the surface bubbles. What does this most likely indicate?

A
a chemical change, because a precipitate is being formed
B
a chemical change, because a gas is being formed
C
a non-chemical change, because a precipitate is being formed
D
a non-chemical change, because a gas is being formed
28

When vinegar and baking soda react, the mixture becomes cold to the touch and a gas and a new liquid substance are formed.

A
The reaction is chemical and endothermic.
B
The reaction is chemical and exothermic.
C
The reaction is non-chemical and endothermic.
D
The reaction is non-chemical and exothermic.

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