Bernice Said:

I need to write a hypothesis for my chem class and I'm having a hard time?

We Answered:

Your answer can only be as precise as your measurements. Thus, if a graduated cylinder is only marked by the tenth of a mL, then your answer can only be to the nearest tenth of a mL.

Thomas Said:

Please Help- How do I write a lab report?

We Answered:

Here is a great collection of tools for helping you write lab reports. It's been put together by the folks at North Carolina State University.

http://www.ncsu.edu/labwrite/

Earl Said:

Can you write me a hypothesis for a closed ecosystem , any help would be great :)?

We Answered:

Into the bottle with water you should put the fish, with rocks at the bottom as well. The plant should be half into the water. On the other half, out of water you should pose the snail. It’s a system with abiotic (water, rocks) and biotic (fish, snail, plant) parts. These all have to work together and work as a cycle, that’s the sense.

The plant feeds the snail and the fish, transferring oxygen to the water where the fish lives, as well. The rocks provide accommodation for the fish, such as the leaves of the plant for the snail. In an extreme situation the snail might be food for the fish!

If this system holds out closed for four days, let me know! It’s fairly enough in my point of view.

Edit: I guess i don't understand your question. You want another imaginal system based on that you described? It' not clear to me, though.