Tuesday, September 18, 2012

Classes measure volume of irregular shapes in science

It was great to be back today; although the pain has not gone away, it has ebbed a bit with the help of some medicine.

In writer’s workshop we worked on our book that we will read to the school at Rise ‘n Shine next Monday.

In science we went over what they read yesterday.  We also figured out to measure the volume of irregular shapes.  We discovered by using displacement, we are able to measure the volume of such shapes.  This is the bathtub way.  When you get in the tub, the water rises, right?  We measured the amount of liquid in a graduated cylinder.  We then placed an object in the water, and read the water level with the new object. Since 1 ml of liquid is equal to 1 cm cubed of solid, we were able to figure out the volume.  For example, we started with 130 ml of water in our graduated cylinder.  We added a tornado tube and then it showed 145 ml.  We subtracted and found that the volume of the tornado tube was 15 cm cubed.

Have a great evening!

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