Background: The students in my class designed a new plant cell lab. Instead of using onion skin cells they headed outside on a brisk fall morning to collect some crouch grass. The grass was soaked in a beaker of water while they prepared their lab sheets.
They came up with several simple hypotheses about what they might see through the microscope. Below is an example of a lab report by Danielle.
Title: Beautiful Grass
Statement of Problem: The question we are trying to answer is will we see different types of cells in the grass leaves and stems.
Hypothesis: By looking at the piece of grass, close up under the microscope we will see different types of cells.
Materials: compound microscope, piece of grass, pipette, water, mini beaker and cover-slip
Procedure: First we collected the grass and set up the materials. Second, we put the piece of grass on the slide and put one drop of water on the grass, and quickly pressed it down with the cover-slip, to help to see it better. Then we focused the microscope under low power and looked at it.
Grass cells at 1000x Photographed by Edith
We saw beautiful green cells. It was very amazing.
Conclusion: Yes, our hypothesis was correct. We saw two kinds of cells, long cells and square cells. Something we learned here is to look at things more closely and see what is inside of things because you might be surprised.