Question

why did you wrap test tube 2 and 5 in aluminium foil and not test tube 1 and 6?

Answer 1

To see if the aluminum made the difference

Answer 2

it would help if I knew what experiment you were doing, but that sounds right.

Answer 3

experiment about carbon dioxide in photosynthesis

Answer 4

see if you can find it online.

Answer 5

In the dark test tube carbon dioxide will be produced, and will cause the acidity level in the water increase. In the light test tube carbon dioxide will be consumed, making the oxygen level rise and make the acidity level decrease

Answer 6

oh. then the aluminum is to block the light.