I learned how to measure the water transparency
I learned how to test water chemicals
I learned how see plankton,bloodworms and what they look like.
How many small animals live in the water.
Coldest point in lake Michigan
I learned how to measure the water transparency
I learned how to test water chemicals
I learned how see plankton,bloodworms and what they look like.
How many small animals live in the water.
Coldest point in lake Michigan