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Transcript

In this lab we took 3 test tubes, two small and one big.

Respiration LAb

We put Potassium Hydroxide tablets. In the bottom of the test tubes, and covered it with a cotton ball.

Then we put the crickets in two of the test tube, and we put germinated corn seeds in the one of the tubes. We put a cork on the top with a straw through the middle.

we placed all three test tubes in a tube of water. And made sure the straws were in the water. We left them for ten minutes.

After ten minutes we took the tubes out of the water to see how much the water moved up the straw.

In conclusion the smaller the space the faster resperation happens.

Errors: The test tube could have not been sealed correctly.

The water in the smaller test tube was filled 100%.,

The results are as shown:

the water in the larger test tube when up 40%.

The water in the test tube with the corn seeds went up 31%.

The water in the small test tube filled all the way.

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