Conservation of Mass

Kathy buys a 5-ounce cup of ice cream. The summer heat melts the ice cream before she can eat any. Which best describes the weight of the melted ice cream?

• 2.5 ounces

• 5 ounces

• 15 ounces

• 15 ounces

Tags

NGSS.MS-PS1-4

An ice cube is placed in a glass of water. The total weight of the ice cube and water is 1.5 pounds. After the ice cube melts, what will most likely be the total weight of the water?

• 0.8 pounds

• 0.4 pounds

• 1.5 pounds

• 1.0 pound

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Ashley placed 20 grams each of water, grape juice, orange juice, and coffee in an ice cube tray. Ashley wanted to see what the mass of each liquid would be after freezing. Which is most likely Ashley's conclusion when she weights the frozen samples?

• Each sample will weight 40 grams

• Each sample will weigh 25 grams

• Each sample will weigh 20 grams

• Each sample will weigh 15 grams

Tags

NGSS.MS-PS1-4

James wanted to observe the interaction between his favorite soda and some candy. James poured 20 ounces of soda and 2 ounces of candy in a closed container weighing 5 ounces. What would most likely be the weight of the mixture and container after the candy has completely dissolved?

• 5 ounces

• 20 ounces

• 25 ounces

• 27 ounces

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

John filled a bottle half way with water, placed a lid on it, and then put it in the freezer. How does the weight of the water and bottle compare before and after it is in the freezer?

• The water and bottle weigh the same as they did when they went in the freezer.

• The water and bottle weigh more when they came out of the freezer because ice weighs more.

• The water and bottle weigh less when they came out of the freezes because water evaporates when it gets cold.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Pat raked and bagged 2 pounds of maple leaves that had fallen to the ground. Which best describes the weight of the leaves before they fell to the ground?

• 0.5 pounds

• 1 pound

• 2 pounds

• 2.5 pounds

A jeweler melts silver to make jewelry. As the silver melts, the mass?

• increases

• decreases

• is destroyed

• stays the same

Tags

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. If Anthony weighs the water and baking soda solution, what will its mass be?

• 4.75 grams

• 5.75 grams

• 5.25 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A group of students mixed 10 ounces of liquid X with 12 ounces of Y to create a new substance. The experiment was conducted in a closed soda bottle weighing 3 ounces. The students weighed the bottle with the new substance immediately following the experiment. Which best describes their result?

• It weighed 13 ounces because liquid Y dissolved in liquid X.

• It weighed 15 ounces because liquid X dissolved in liquid Y.

• It weighed 25 ounces because the weight of both liquids and the bottle remain the same and be added together.

• It weighed 47 ounces because the weight of the liquids is doubled when they are mixed, and the weight of the bottle remains the same.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Mr. Williams' class conducted an experiment by combining 8 ounces of vinegar with 6 ounces of lemon juice. The experiment occurs in a closed container weighing 4 ounces. After the interaction, what is the weight of the container and solution?

• 10 ounces

• 11 ounces

• 14 ounces

• 18 ounces

Tags

NGSS.MS-PS1-5