Sunday, September 27, 2009

this week in science

this week in science, class, some of the science ideas that i learnt were that when the laser pointer points the laser at something and it bounces off the solid object that it was pointed, and reflects to many different places sending light rays all over the place. And so, the light from the laser pointer comes into your eye after reflecting off the wall and thats how you are able to see the laser point on the wall on teh other side of the room.

I learnt this by thinking
"how are we all (everyone in the class) able to see the little dot from the laser on the wall from the angles we were looking from. so, we decided on the conclusion that the light reflects off the wall and
the rays go in many directions going into our eyes. then we are able to see the dot there."

It is important to know this because in life, if we do go into the field of medicine for the eye, we should know how the eye works in order to diagnose a problem in the eye.


Sunday, September 20, 2009

9/14/09

this week in science, we started our light chapter. We had to conduct experiments in which we tested how a beam of light gets from the laser pointer to the wall or any solid object. likewise a bulb to all around us.

Then we had to figure out how we are able to see this happen. I found this really helpful website that helped me a lot understanding how the eye works.
This is the link to it


this week i learnt that we always have to use our scientific knowledge to help us a round in life.
this week, we had to create an experiment on how we could test how a laser could reach a wall and how it gets to our eye for us to see. i had to devise an experiment to test how this works. in another case, last week we had to think of ways to find out the truth whether mr. finley watches kids on close captioning tv, we had to create an experiment to find out if he really does this and why he does this.
So, we have to create experiments all the time and think of possible outcomes that could affect us.
i learnt these ideas by
1 researching(how the eye works)
2 thinking about when in life i use my creating experiments skills and testing them.
3 by thinking of all the possible ways some thing could happen to effect us.(laser pointer)

so, it is always good to have these ideas in mind because in life, we will always need them.