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Biology / Biology: The Dynamics of Life 1 / Chapter 30 / Problem 21

Biology: The Dynamics of Life | 1st Edition | ISBN: 9780078299001 | Authors: Alton Biggs, Whitney Crispen Hagins, Chris Kapicka, Linda Lundgren

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Open Ended You are trying to find the optimum pH for hatching frog eggs. Design a

Chapter 30, Problem 21

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QUESTION:

Open Ended You are trying to find the optimum pH for hatching frog eggs. Design a controlled experiment that would yield quantitative data.

Questions & Answers

QUESTION:

Open Ended You are trying to find the optimum pH for hatching frog eggs. Design a controlled experiment that would yield quantitative data.

ANSWER:

Objective: Determine the optimum pH for hatching frog eggs.

Materials:
- 100 frog eggs
- Five petri dishes
- pH strips
- 1 M HCl
- 1 M NaOH
- 5 beakers
- Distilled water
- Timer

Procedure:
1. Label each petri dish with the pH levels 5, 6, 7, 8, and 9.
2. Place 20 frog eggs in each petri dish.
3. Fill each beaker with 250 mL of distilled water.

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