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What is acid rain and how does it form? What affect does acid rain have on seed germination and the growth of plants? What is the pH of acid rain in your local environment? These are a few of the questions that students will be exploring in this biology or ecology lab activity. The "Human Impact on the Environment" is a vital portion of any ecology unit. It is extremely important that we teach our science students the impact that human activities have on the environment.
What is included in this product??
• 4-Page Student Lab Handout
• Editable lab handouts that are ready to be printed and passed out to your students.
• Complete and detailed instructions.
• 6-Page Teacher Guide
• Complete Answer Key
The Teacher Guide Includes:
• Materials List
• Seed purchasing information
• Preparation of Solutions
• Tips and suggestions for the successful completion of the lab
• Alternative lab supplies that can be used
• Best practices for growing (germinating) seeds
• Sample data and graph
• Complete answer key
I use this lab when teaching my "Human Impact on the Environment" unit. It is the perfect activity to use with my PowerPoint and Notes on this topic.
• Students will determine the effect of acid rain on the germination of radish seeds.
• Students will observe how five different rainwater solutions of different pH levels affect the rate of germination.
• Students will determine the pH of rainwater in their local area.
• Students will make a data table, compile class average data, graph their lab results, and answer a series of critical thinking questions at the conclusion of the lab.
Students will need the following:
• 5 Petri dishes (100 mm x 15 mm)
• 10 pieces filter paper to fit Petri dishes
• 50 Radish seeds
• 5 rainwater samples
• Graph paper
• Ruler (for graphing)
• Safety goggles
• Lab apron
• Medicine dropper
• Glass marking pencil or sharpie
• pH paper
For Teacher Use:
• Concentrated sulfuric acid
• Five 1000-mL Beakers or other large glass containers.
This lab is appropriate for students in grades 8 - 12. The experiment and collection of data is easily completed by students in these grades. The differentiation in ability levels comes in the analysis questions. For younger students, it may be necessary to omit some of the analysis questions. Student handouts are completely editable to meet your needs.
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