We began today with review of monocots and dicots (types of flowering plants) and then continued our discussion of plants by talking about what plants need to live--water, nutrients, sunlight, and CO2. The students paired up to make a poster to illustrate these needs. Everyone will be making observations on their seeds and potato over the next couple weeks while we test the requirements for plants to grow.
Next, we talked about plant structure. Plants are fairly simple--roots, stems, leaves, and fruit/flowers, which makes them a good organism to begin looking at specialized tissue and systems before we jump into human organ systems. We didn't have much time to get into the details, but did briefly introduce the leaf and started a flip book on the various layers of cells in the leaf which we will continue next week. Follow up ideas: Videos: Plant Structure and Adaptations--I was going to show this video in class, but was having problems with the TV, but this is a good one to review plant classification and look into plant structure. Structure of the Leaf-- This goes over the parts of a leaf, which we will be continuing to discuss next week. The Forest Tree-- This video gives a quick overview of the structure and function of trees Activities: If you have a microscope at home, you can view the stomata on a leaf at home. This activity from the CA Academy of Sciences explains how to prepare slides of the top and underside of a leaf so you can compare the number of stomata. Can you explain why there is a difference in the number between the two? Leaf Chromatography--Explore the colors found in leaves (there are still some late-changing leaves around that you can do this with--go on a leaf hunt!).
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May 2020
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