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Zach's Learning Journal
Aug. 15, 2008
Science: Fruit Lab
Aug. 15, 2008
This Week's Science Labs: Dissect a Flower
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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Jul. 20, 2006
Sound, Ears, and Hearing - Frogs today
After learning about bats yesterday, today we turned our attention to frogs. We have a big leopard frog in our dissection box. It is a male because the tympanum is large. It was helpful seeing it on a real frog instead of just in pictures. Something else I enjoyed was hearing the different calls of frogs. I was mostly interested in the leopard frog because that was the kind of frog that we had in our dissection kit. The sounds of southern leopard frogs are a lot like a cackling laugh. It made me laugh to hear them. I attached a sound file to my e-notebook page. When my e-notebook is finished and I publish it as an e-notebook, it will play.
Here is my e-notebook page on frogs that mom helped me with. Just click the thumbnail to see it bigger.

Even though we have moved on to frogs, I am still enjoying bats. Today I wrapped myself up in a sheet for wings and played I was a bat. I saw how baby bats cuddled up with their mommies, so I liked getting into Mommy's lap today with my baby bat wings all tucked up around me. I also parcticed making bat noises to do echolocation. It was fun.
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Jul. 19, 2006
Ears, Hearing, and Sound - Sound is Vibration
For my e-notebook for Sound I watched an episode of Magic School Bus and we did a sound lab. Both showed me how sound is vibration. Here is my e-notebook page on today's activities. Just click the thumbnail to see it full sized.

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Jul. 19, 2006
Ears, Hearing, and Sound - Going Batty Today
This morning we discovered a bat on our porch. One of the cats got him. Probably Oreo because she is a very good hunter. Finding the bat was great because one of the things we are studying is animal hearing. For bats hearing is very important. Without their good sense of hearing, bats would crash into everything at night. Read my e-notebook entry that mom helped me with to learn more about our 'batty' day. Just click on the thumnail below to see it full sized.

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