Question
Which observation most likely indicates that only a chemical change has taken place?(1 point)
Responses
The shape changes.
The shape changes.
The change cannot be reversed.
The change cannot be reversed.
A reaction occurs.
A reaction occurs.
States of matter changes.
Responses
The shape changes.
The shape changes.
The change cannot be reversed.
The change cannot be reversed.
A reaction occurs.
A reaction occurs.
States of matter changes.
Answers
Answer
Use the table of observed changes to answer the question.
Change # Reacts with another substance? Temperature change? Gas, sound, or light produced? New substance formed?
1 yes yes yes yes
2 no yes yes no
3 yes yes yes yes
4 no no no no
Which changes shown in the table are physical changes?
(1 point)
Responses
2 and 3
2 and 3
1 and 2
1 and 2
1 and 4
1 and 4
2 and 4
Change # Reacts with another substance? Temperature change? Gas, sound, or light produced? New substance formed?
1 yes yes yes yes
2 no yes yes no
3 yes yes yes yes
4 no no no no
Which changes shown in the table are physical changes?
(1 point)
Responses
2 and 3
2 and 3
1 and 2
1 and 2
1 and 4
1 and 4
2 and 4
Answer
Why is it a physical change to freeze water?(1 point)
Responses
Only a phase change occurs.
Only a phase change occurs.
Heat is released during the process.
Heat is released during the process.
The new and original substances are different.
The new and original substances are different.
A temperature change occurs.
Responses
Only a phase change occurs.
Only a phase change occurs.
Heat is released during the process.
Heat is released during the process.
The new and original substances are different.
The new and original substances are different.
A temperature change occurs.
Answer
Which option is an example of a chemical change?(1 point)
Responses
chopping vegetables
chopping vegetables
burning wood
burning wood
stretching a rubber band
stretching a rubber band
folding paper
Responses
chopping vegetables
chopping vegetables
burning wood
burning wood
stretching a rubber band
stretching a rubber band
folding paper
Answer
True or False:
An individual’s self-esteem stays the same throughout their life.
(1 point)
Responses
true
true
false
false
An individual’s self-esteem stays the same throughout their life.
(1 point)
Responses
true
true
false
false
Answer
True or False:
Self-actualization means that you focus on yourself all the time.
(1 point)
Responses
true
true
false
false
Self-actualization means that you focus on yourself all the time.
(1 point)
Responses
true
true
false
false
Answer
Which of the following is a skill you can practice to improve your self-esteem?
(1 point)
Responses
Recognize your strengths as well as your weaknesses
Recognize your strengths as well as your weaknesses
Always think you should succeed at everything you try
Always think you should succeed at everything you try
Be concerned about what others think of you
Be concerned about what others think of you
Hide your insecurities from others
(1 point)
Responses
Recognize your strengths as well as your weaknesses
Recognize your strengths as well as your weaknesses
Always think you should succeed at everything you try
Always think you should succeed at everything you try
Be concerned about what others think of you
Be concerned about what others think of you
Hide your insecurities from others
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