Terrarium

The temperature of the terrarium is 69 degrees. The side without the disturbance measures at 16cm. The side with the disturbance measures at 14cm.

Centennial woods

In centennial woods we were able to discover an area was once a field.
We were able to tell because the pine trees were older and taller than the maple trees. We predicted the pine trees were 100-150 years old. We also predicted the maple trees would someday grow over the pine trees and eventually kill off the pine trees.

Disturbance

The measurement when I first built my terrarium was 19.5cm. My measurement today was 16cm. My hypothesis that the compost would shrink was correct. As a disturbance, I mixed half my terrarium. I hypothesize that the more you mix the compost, the faster it decomposes, causing it to lower faster than the dirt that has not been mixed.

Leaves

Eastern hemlock:

Similar to white pine because of its needles. Different from sugar maple, wild grape, red oak, black walnut and fern because it's not a leaf.

White pine:

Similar to eastern hemlock. Different from the other leaves.

Sugar maple:

Similar to wild grape because of their shape, but different in size. 

Wild grape:

Different from the fern, doesn't have multiple ferns growing off the stem

Red oak:

Similar to the wild grape, they're both large leaves.

Black walnut:

Similar to the fern because of its multiple leaf/stem growth off the stem

Fern:

Similar to the black walnut and wild grape in size.