Physical
and Chemical Changes in Matter Web Quest
Name: ____________________________________ Date: _________ Sec: _____
Read about Physical/Chemical Changes and take notes from the
website below.
1.
What is a physical change?
2.
Name 3 examples of physical changes.
3.
What is a chemical change?
4.
Name 3 examples of chemical changes.
After reading the information at this
site answer these questions
5.
How can you cause a physical change?
6.
What would be an example of a chemical change
that took a long time to occur?
7.
Why are chemical changes considered “unseen”?
8.
Can a physical change, change what a substance
is? Explain your answer by giving an example.
9.
Why can’t chemical changes be reversed? Explain
your answer by giving an example.
10. What
is an endothermic reaction?
11. What
is an exothermic reaction?
12. What
is a catalyst in a chemical reaction? Give one example.
13. Take
the quiz and record your score:_________
Go to the following
website and read the info about chemical and physical changes and try to add
some new information about each by answering the questions
14. What
new information can you add to your definition of physical change?
15. What
new information can you add to your definition of chemical change?
Melting/heating Experiment – This one
is a challenge. You can start it from beginning as many times as necessary to
help you see the change in temperature.
Once on this site, select the pink or
the green material.
(Circle which one you selected.) Pink
Green
What was the melting point?
_______________
What was the boiling point?
_______________
Do you think the melting and boiling
point is the same for the other material? _____
Try it out!! Considering what you
know about matter, why do you think that different substances have different
melting and boiling points?
16. What
is the definition for a chemical change?
17. What
is the definition for a physical change?
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Example
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Chemical or Physical
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Reason
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Glass
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Fireworks
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Water Freezing
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Photosynthesis
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Snowman
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Homework
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Volcano
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Penny
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Soda can
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Cake
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Tree
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Pot of Water
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Total Correct: Chemical
Correct: Physical
Correct:
Journal
Questions:
14. Is
evaporation of water a physical change or chemical change? Explain your answer!
15. List
three clues that indicate that a chemical change has taken place.
16. Give
an example of a chemical change that you encounter every day.
17. Explain
how a burning candle can demonstrate both a physical and chemical change.
Visit the
following site to answer the questions http://www.ric.edu/faculty/ptiskus/chemical/
18. Name
at least 6 clues that can be used to determine if a chemical change has taken
place.
A.
_________________________________
B.
_________________________________
C.
_________________________________
D.
_________________________________
E.
_________________________________
F.
_________________________________
G.
What is the difference between a chemical and
physical property of a substance?
Exothermic & Endothermic Reactions
19. An
exothermic reaction __________________ heat and causes the temperature of the
surroundings to _____________________.
20. An
endothermic reaction __________________ heat and causes the temperature of the
surroundings to _______________________.
Use the chart
on this site to complete the table below. Include only chemical reactions, not
physical changes!!!!
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Exothermic Chemical Reactions
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Endothermic Chemical Reactions
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