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  • Stage 1

    Answer 4 questions correctly in a row.

Two identical aquariums were next to an open window. One aquarium had a plastic cover on it, and the other was uncovered. This table shows how the temperature of each aquarium changed over
1.5
.
AquariumInitial temperature
(
°C
)
Final temperature
(
°C
)
Uncovered aquarium20.717.9
Covered aquarium20.717.9
During this time, thermal energy was transferred from 
the surroundings

 to 
the surroundings

.
ref_doc_title.

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