Monday - This
week we will work on a lab where students will collect
and interpret evidence on the properties of materials. We
will be using solid objects and calcute the masses and volumes
in an effort to understand density.
Today students sorted several
balls made of different materials, first by heft then by size.
Both sortings were different.
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Tuesday - Today
students worked on calculating the masses and volumes of two cubes
of the same size but differing weights.
Students then practiced calculating
the volume of a piece of basalt rock.
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Wednesday - Today
students worked with a marshmallow to see if they could get it
to sink in water by reducing it's volume (in other words, by squishing
it).
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Thursday -
Today we reviewed what happens to a small piece of clay when placed
in water. Strangely enough if the whole clay sinks even small
pieces of clay will sink in water.
We also calculated the density
of the two cubes from Tuesday. We learned how to draw a heart
to remember the formula for density (D, or the greek letter rho,=
mass divided by volume or m/v).
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Friday - Today
teams calculated the density of water. Funny how all teams got
answers very close to one gram per cubic centimeter.
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