How Does The Amount Of A Chemical Affect Algae Growth Biology Worksheet
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1Name
Date
STUDENT RESOURCE 6.4
How Does the Amount of a
ACTIVITY SHEET
Chemical Affect Algae Growth?
1
Fill each cup with 40 mL of algae water from your
group’s aquarium.
2
Add a different amount of plant fertilizer to each
cup. Follow the chart below.
3
Predict which cup will show the most algae growth
in three weeks.
Prediction:
4
After three weeks, test the pH of each cup. Record
the pH in the chart.
Cups
Amount of fertilizer added pH
Cup 1
none
Cup 2
1 drop
Cup 3
5 drops
Cup 4
10 drops
Cup 5
25 drops
Cup 6
50 drops
Cup 7
100 drops
5
Which cup showed the most algae growth? Cup
6
Was your prediction correct?
AQUARIUM HABITATS • SECTION 6 WATER POLLUTION
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