Question

will poured water into an empty 25-gram ice cube tray. he covered the tray and put it in his freezer.
that night, will took the tray out of the freezer and uncovered it. he saw that there had been a change. the tray was filled with ice cubes. the total mass of the tray and the ice cubes was 225 grams.
complete the bar graph to show the mass of the water.
masses before and after the change
bar graph with y-axis labeled mass (grams) from 0 to 250, x-axis categories: empty tray, water, tray and ice cubes; empty tray bar at 25 grams, tray and ice cubes bar at 225 grams, water bar empty

Explanation:

Step1: Identify the mass of the tray

The empty tray has a mass of 25 grams (from the problem statement: "empty 25 - gram ice cube tray").

Step2: Identify the total mass after freezing

The total mass of the tray and ice cubes is 225 grams (given in the problem: "The total mass of the tray and the ice cubes was 225 grams").

Step3: Calculate the mass of the water (which becomes ice)

The mass of the water is equal to the mass of the ice (since freezing is a physical change and mass is conserved). The mass of the ice is the total mass of the tray and ice cubes minus the mass of the tray. So, mass of water = mass of tray and ice - mass of tray = \(225 - 25=200\) grams.

Step4: Complete the bar graph

The bar for "water" should reach up to 200 grams on the y - axis (since the y - axis is labeled "Mass (grams)" and the scale goes up to 250, with 25, 50, 75, 100, 125, 150, 175, 200, 225, 250 as marks).

Answer:

The mass of the water is 200 grams, and the bar for "water" in the bar graph should be drawn to reach the 200 - gram mark on the vertical (mass) axis.