3/3/09

this week in science we started the physics unit. as we move the objects that are still seem to move in the opposite direction. the scientists started with a geocentric model because if you look at the sky the sun seems to revolve around the earth. it should be a heliocentric model because if you go in a roket you can clearly see that the earth revolves around the sun. on monday we finished our mineral activity. on tuesday we took a pre assesment for the physics unit. on friday we did an activity with physics.