Lake Core Investigation

By Molly, Nicole, Taylor and Robert



Question: How do diatoms differ from 50 cm to 70 cm?



Data: We did about 5 different slides at 50 cm and also at 70 cm. The diatoms differed between the two observations.



Conclusion:

Claim: Both were the same size but they were shaped differently. The diatoms at 50 cm were shaped like bricks and the diatoms at 70 cm were shaped like ladders.



Evidence: There were more diatoms at 70 cm than 50 cm.



Reasoning: At 50 cm we didn't see many diatoms, but at 70 cm we saw more than 20 diatoms



Further Questions:

1. Would've our results changed if we went deeper than 70 cm?

2. Would the moisture or dryness of the soil change the amount of diatoms?