Plant Matter from Air and Water
5th Grade Science · Flashcards
5TH GRADE SCIENCE · FLASHCARDS
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QUESTION
Identify the best conclusion: A plant gains
2
k
g
2\,kg
2
k
g
mass while soil mass drops only
0.02
k
g
0.02\,kg
0.02
k
g
.
QUESTION
What evidence from van Helmont's experiment supports that soil is not the main source of plant mass?
QUESTION
What tiny openings in leaves let
C
O
2
CO_2
C
O
2
enter and
O
2
O_2
O
2
exit?
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ANSWER
Stomata. These pores open and close to regulate gas exchange in leaves.
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