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Biology - HOT Science Lab

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Student<br />

10. After 24 hours, observe the test tubes. Record your observations in the Data Table.<br />

Observations/Data:<br />

Test Tube Description Color of Cabbage Indicator<br />

Data Analysis:<br />

1. Observing: Did the color of the cabbage indicator (or bromothymol blue) change when<br />

you exhaled into the test tube Explain why.<br />

2. Observing: Did the color of the cabbage indicator (or bromothymol blue) change in the<br />

test tube that contained the radish seedlings Explain the reason.<br />

3. Comparing and Contrasting: Compare the reaction that occurred in the test tube that<br />

contained the radish seedlings with the one that occurred in the test tube into which you<br />

exhaled. How are they similar<br />

4. Inferring: Did respiration occur in this experiment Explain your answer.<br />

Results/Conclusions:<br />

1. Was your hypothesis correct or incorrect Explain your answer in detail.<br />

2. Why is the process of cellular respiration common to all forms of life<br />

3. Why do most living things take in oxygen<br />

4. Each student will complete a formal lab report following the guidelines on the Parts of a<br />

<strong>Lab</strong> Report: A Step-by-Step Checklist<br />

<strong>Biology</strong> HSL Page 132<br />

Curriculum and Instruction

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