Environmental Science Investigation
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Environmental Science Investigation
Read the field notes
The group wondered whether a shady stream bank supports more small aquatic animals than a sunny bank. They chose three places with similar water depth. At each place, they used the same kind of net for one minute, then counted the small animals caught. They also recorded shade and water temperature. They did not put the animals in danger and returned them to the stream. This is a small sample, so it can suggest a pattern but cannot prove that shade alone caused any difference.
Site
Bank shade
Water temperature
Small animals counted
A
Mostly shady
13°C
12
B
Partly shady
15°C
8
C
Mostly sunny
18°C
5
Plan and interpret the investigation
Use the field notes and results table as evidence. Remember: a variable is something that can change in an investigation.
- Does bank shade relate to the number of small aquatic animals counted?
- Which site has the deepest water?
- Do fish prefer nets or rocks?
- Which stream is the longest?
2 printable pages
Page 1
Page 2
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