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The graph shows a heating curve for water. Which point on the graph indicates that all of the liquid water has been converted to water vapor?

• 1

• 2

• 3

• 4

Which state of matter has NO definite volume and NO definite shape?

• Solid

• Liquid

• Gas

Figure 1 diagram shows an ice cube in a cup. Figure 2 shows the ice cube melted to water in the cup. Which property of the ice cube remains the same both before and after it melted?

• color

• shape

• mass

• temperature

Which statement BEST describes how the pieces compare to the completed model?

• Each piece is stronger than the completed model.

• The mass of the completed model equals the mass of all the pieces.

• Each piece is made from a different material than the completed model.

• The mass of the completed model is more than the mass of the all the pieces.

An ice cube melts and then evaporates. The ice cube and the water vapor have the same

• mass.

• density.

• volume.

• temperature.

The water was allowed to freeze. Which is most likely true about the ice

that formed?

• The mass of the ice is the same as the mass of the water.

• The mass of the ice is greater than the mass of the water.

• The ice formed is a different substance than the water.

• The ice formed is the same temperature as the water.

Tracy measured the mass of an empty beaker. The mass of the beaker was 100 grams (g).

She filled the beaker with some water and measured the mass again. The total mass was 150 grams.

Tracy put the beaker with water in the freezer. After the water froze, what was the mass of the beaker?

• 50 g

• 100 g

• 150 g

• 500 g

Sam built a rocket using a full set of blocks. How would taking the rocket apart effect the total mass of the blocks?

• The total mass of the blocks would double.

• The total mass of the blocks would be the same apart as together.

• The total mass of the blocks would decrease because they are together.

• The total mass of the blocks would increase because the blocks are apart.

Mike dissolves some sugar in water and pours 10 ounces of the mixture

into a jar with a lid to create rock candy. Which is most likely the weight

of the mixture after it crystallizes into rock candy?

• 0 ounces

• 5 ounces

• 10 ounces

• 12 ounces

A teacher adds 2 g of chalk to 25 g of vinegar in a tightly sealed jar. The chalk and vinegar react, and gas bubbles form. What is the total mass of the jar’s contents after the reaction takes place?

• 50 g

• 27 g

• 23 g

• 25 g