In complete sentences…
¤Why do some things sink and some things float?
Think of something that is LARGE that floats, and something that is small that sinks.
"Do Now" Answer:
SOme things float because they have less mass and a big volume (take up a lot of space). An example of something that's large but floats is a boat. Other things don't take up a lot of volume, but have a big mass for its size and therefore sink. An example of something small that sinks is a rock.
Students will look at their data table and then take the MASS OF WATER and divide it by the VOLUME OF WATER.
In your Coke v Diet Coke lab, copy your materials/procedure and data for "how to find the mass of water". This is what we've been doing for the past 2 days.
For example, on the data table to the left (first row). The mass of just the water is 100.35 grams. The volume of the water is 100mL.
100.35 ÷ 100mL = 1.0035 g/mL
That means, the density of water is 1.0035 g/mL
Students need to create another column next to the "mass of water" column called "Density of water" and calculate the density of water for each row.
BINDER CHECK TOMORROW