Name __________________________________ per. _______ date _______________
ENERGY INVESTIGATION STATIONS
STATION #1: EXERCISE & ENERGY
a)
b)
c)
d)
e)
f)
g)
1.
Fill a glass flask with 150 mL of fresh bromothymol blue solution. Bromothymol blue
turns yellow in the presence of carbon dioxide.
Insert a plastic straw piece into the clear plastic tube. Put the other end of the
clear tube into the flask of blue solution.
Blow gently into the straw and time how long it takes for the solution to turn yellow.
Record time here: ______________
Pour the yellow solution into the “Used” jar and refill flask with 150 mL mL of fresh
solution.
Do 50 jumping jacks or go out to the hallway and jog up the stairs to the second floor
and back 4 times.
Repeat step 3. Record time here: _________________
BE SURE TO PUT YOUR USED STRAW PIECE INTO WASTE CAN!
Which time was faster? How do you explain this?
2. What is the equation for cellular respiration? Circle the reactant/product that increased
at this station in order to change the blue solution to yellow.
STATION #2: ATP = ENERGY ASAP
3. Use the diagrams on p. 203 to draw a picture of an ATP molecule and an ADP molecule
below:
4. Explain how cells use ADP and ATP molecules to store and release energy.
5. How is cell respiration like breaking a $100 bill into $1 bills? Which bill is ATP like?
6. Use the tinker toy pieces at this station to construct a model of an ATP molecule like the
one on p. 203. Explain to another student how it’s used to store and release energy and get
his/her initials here: ______________
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STATION #3: MAKING MOLECULES (PHOTOSYNTHESIS)
7. What is the equation for photosynthesis? (see p. 206 for help)
8. What are the reactants (beginning substances)?
9. What are the products (ending substances)?
Make ball and stick models for all of the reactant molecules used in photosynthesis. Use the
picture guide to help you assemble molecules correctly.
10. Raise your hand to show me 6 molecules of carbon dioxide and 6 molecules of water.
Teacher initials _________
Take those molecules apart and use the same atoms to build the products.
11. Raise your hand to show me one molecule of glucose and 6 molecules of oxygen.
Teacher initials _________
12. How many carbon atoms go into photosynthesis? _______How many come out? _______
13. How many hydrogen atoms go into photosynthesis? _______How many come out? _______
14. How many oxygen atoms go into photosynthesis? ________ How many come out? ______
15. In photosynthesis, where do plants get the atoms they need to make sugar molecules?
STATION #4: ENERGY TO BURN
a. Stick a small marshmallow on the end of the bent paperclip as shown:
b. Use a match to light the marshmallow on fire and watch it burn.
c. Put what’s left of the marshmallow in the waste can and try
burning another marshmallow. This time, after the marshmallow starts
to burn, cover the whole thing with the glass jar.
16. Marshmallows are made up mainly of sugar. What does this station tell you about sugar and
about cell respiration?
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STATION #5: AUTOTROPHS & HETEROTROPHS
17. What is an autotroph?
18. What is a heterotroph?
19. Identify each specimen at this station by name. Is it an autotroph or heterotroph?
Name
a.
b.
c.
d.
e.
f.
g.
h.
i.
____________________
____________________
____________________
____________________
____________________
____________________
____________________
____________________
____________________
Autotroph, Heterotroph, or Both?
_________________________
_________________________
_________________________
_________________________
_________________________
_________________________
_________________________
_________________________
_________________________
20. Generally, which kinds of organisms are autotrophs? Which kind are heterotrophs?
21. What are the green structures in specimen “i” called?
22. Where in cells does photosynthesis occur?
23. Where in cells does cell respiration occur?
STATION #6: MAKING MOLECULES (CELL RESPIRATION)
24. What is the equation for cell respiration? (see p. 222 for help)
25. What are the reactants (beginning substances)?
26. What are the products (ending substances)?
Make ball and stick models for all of the reactant molecules used in cell respiration. Use the picture
guide to help you assemble molecules correctly.
27. Raise your hand to show me one molecule of glucose and 6 molecules of oxygen.
Teacher initials _________
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Take those molecules apart and use the same atoms to build the products.
28. Raise your hand to show me 6 molecules of carbon dioxide and 6 molecules of water.
Teacher initials _________
29. How many carbon atoms go into cell respiration? _______How many come out? _______
30. How many hydrogen atoms go into cell respiration? _______How many come out? _______
31. How many oxygen atoms go into cell respiration? ________ How many come out? ______
32. In cell respiration, do cells create and destroy matter, or do they only change it into
different forms? Explain your answer.
CONCLUSIONS
1.
Suppose you came home and found a family member unconscious on the floor. What are the
first two vital life functions you should check for? Explain in terms of cell respiration why
these two functions are so important.
2. Why do living things need energy? Give 4 examples of life processes that require energy.
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