In science this week we learned about categorizing things and defining them. We made three categories that anything can go into: living, non-living, dormant, dead, and possibly organic.
We learned these ideas by discussing different objects and things and talking about how we could categorize them. For example, we would look at something like a seed. Then , we would analyze it and it's characteristics of life, meaning we'd ask ourselves things such as: does it resperate; does it react to stimuli; does it show growth/development, and other things. We came to the conclusion that because it does not have all of these characteristics, but that it can have them in the future, so it therefore is dormant. We then observed and analyzed other items and categorized them.
Being able to evaluate something using the characteristics of life is very important in Science because it helps you understand how to label or categorize something. For example, if a scientist has something and he has to figure out whether or not it is living, he can take a look at a list of the characteristics of life and evaluate the characteristics of the item.
Monday, September 28, 2009
Saturday, September 19, 2009
Science This Week!
This past week in Science, some science ideas I learned were how diseases can spread and be tracked, what it means for something to be alive, and characteristics of viruses and bacteria and other things.
We learned how diseases can be spread by giving each person in our class a vile of liquid that was either contaminated or non-contaminated. We then swapped liquids with classmates, causing most healthy people to become infected by someone else that's infected. To track where the disease began, we made a web of who we each switched with, then who those people switched with. By doing this we were able to narrow down the original diseased person to two people, which in my opinion is pretty good.
We learned about Viruses and Bacteria by coming up with and sharing what we believe are their characteristics.
It is so important to know how to track disease because in order to properly vaccinate/control disease outbreaks so that the disease can be put an end to. For example, if there are outbreaks of a disease going on around the world, doctors monitor where they are occurring, then send people to that location to vaccinate and control the disease spreading there. I believe that without disease tracking there would be a lot more people becoming ill of or dying from illnesses.
Thanks for reading!
We learned how diseases can be spread by giving each person in our class a vile of liquid that was either contaminated or non-contaminated. We then swapped liquids with classmates, causing most healthy people to become infected by someone else that's infected. To track where the disease began, we made a web of who we each switched with, then who those people switched with. By doing this we were able to narrow down the original diseased person to two people, which in my opinion is pretty good.
We learned about Viruses and Bacteria by coming up with and sharing what we believe are their characteristics.
It is so important to know how to track disease because in order to properly vaccinate/control disease outbreaks so that the disease can be put an end to. For example, if there are outbreaks of a disease going on around the world, doctors monitor where they are occurring, then send people to that location to vaccinate and control the disease spreading there. I believe that without disease tracking there would be a lot more people becoming ill of or dying from illnesses.
Thanks for reading!
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