Zach's Learning Journal

Jul. 21, 2008

Science Learning Journal Entry

We are starting off science by blending a few things together. In my second grade math we have a unit on measurement and in science there is a unit on measurement. So I am learning skills in both at the same time. I played around with our kitchen spring scale. Click on the thumbnail to see it bigger. Timothy is going be starting on two modules about plants in his high school biology, so I am going to work on my plant unit now so I can join in on the fun. Today, I started my first lab project. I planted two types of seeds. I planted corn which is a monocot. I also planted beans which are dicots. You can tell which is which by looking at the seeds. We split opn one corn seed and one bean seed. The bean seed comes apart easily into two halves. Di means two so that was a dicot. The corn is pretty much all in one piece. Mono means one, so that is the monocot. Here is how I planted my seeds. We soaked the seeds for a few hours. Then we lined the inside of a jar with paper towels. By pulling the paper towels back a little bit, it was easy to drop in the seeds so that they would get wedged between the glass and the paper towels. I added water by using the graduated cylinder. That gave me some extra practice with measuring. A graduated cylinder measures in milliliters. The part you read is the bottom of the surface of the liquid. It sort of curves like a smile. That is the meniscus. Here is a picture of me setting it up. Just click on it to see it bigger.

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