Fishless Lake Article

Give an example of acids in the real world.

What caused many lakes in the Adirondacks to become acidic?

• Natural erosion

• Sulfur dioxide from industries

• Excessive fishing

• Forest fires

How long has the team been studying the lakes every summer?

• 16 years

• 10 years

• 20 years

• 5 years

What is the size of the Adirondacks region?

• 4.5 million acres

• 3 million acres

• 6 million acres

• 7 million acres

What did the researchers evaluate in the Adirondacks lakes?

• Water temperature

• Acidity and aquatic life

• Boat traffic

• Fishing regulations

What corresponds with a drop in one unit of pH in the lakes?

• Loss of approximately four fish and plant species

• Increase in water clarity

• Growth of new aquatic plants

• Introduction of new fish species

What is the hope for the lakes that have been impacted by acidification?

• They will become popular tourist spots

• They will be used for hydroelectric power

• Ecosystem recovery

• They will be drained and refilled

What significant change has been observed in Brooktrout Lake over the 12 years of study?

• It has shown signs of recovery and fish have been reintroduced

• It has become more acidic

• It has dried up completely

• It has become a major fishing destination

Shown to the left is what chemical reaction occurs when sulfur dioxide mixes with water, producing sulfuric acid.

Why do you think acidic water is bad for organisms living in the lakes? (Write at least 2 complete sentences.)

Sentence Stem:

1. Acidic water is harmful to organisms living in lakes because…

2. One reason why acidic water is detrimental to organisms in lakes is…

Summarize what you learned you learned in the video into 3 sentences.

Sentence Stems:

1. 1. After reading the article/watching the video to left ________ (name the title of the

text or section of text) I now understand...

2. 2. Today’s activity covered...

3. 3. Today we learned...