Matter

A student prepared a snack that consisted of grapes, pecans, and strawberries sprinkled with white powdered sugar. The student stored the snack in a refrigerator. An hour later the student observed that the powdered sugar could no longer be seen but the fruit and nuts had not changed in appearance. What most likely happened to the sugar in the mixture?

• The sugar dissolved in the moisture on the fruits.

• The sugar evaporated at the lower temperature in the refrigerator without causing any changes to the fruit and nuts.

• The sugar absorbed energy from the nuts and melted into a colorless liquid.

• The sugar was more dense than the other foods in the mixture, so it settled to the bottom of the container.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A student combined powdered paint with water to make a small amount of blue liquid paint mixture. The student left the paint mixture in an open container. Several days later the student found the container and observed that changes had occurred. What most likely happened to the mixture?

• The container was empty after the mixture evaporated into the air.

• The paint evaporated, leaving only clear water in the container.

• The water evaporated, leaving only a dry blue solid in the container.

• The liquid paint mixture was lighter in color after some water evaporated.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

A student mixes a sample of stones with a sample of table salt. The mass and volume of the samples were determined before mixing the samples. The mass and volume of each sample is shown. Which statement is true about the mixture?

• The mass of the mixture is 85 grams.

• The mass of the mixture is 60 milliliters.

• The volume of the mixture is 60 grams.

• The volume of the mixture is 85 milliliters.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The table lists the ingredients of five different mixtures. In which mixtures do all the ingredients maintain their physical state?

• Mixtures 3 and 4 only

• Mixtures 1, 3, and 4

• Mixtures 1, 2, and 5

• Mixtures 2 and 5 only

Tags

NGSS.MS-PS1-2

Some ways to separate mixtures are listed below. A student is given a beaker containing gravel and water. Which of these ways could the student NOT use to separate the gravel from the water.

• 1

• 2

• 3

• 4

A mixture of beads was placed in a container, as shown below. The beads are of various sizes, and each one is made of plastic, glass, or steel. The mixture would be easy to separate because all of the beads -

• are less dense than water

• are solids

• have the same mass

• are attracted to magnets

Students observe some objects on a lab tray. The students will classify the objects based on physical properties common to all of the objects.

Based on their common properties, how should these objects be classified?

• 
• 
• 
• 

Tags

NGSS.5-PS1-3

A student compares the physical properties of the four objects shown.

Which of these physical properties do all four objects have in common?

• They all have the same physical state and conduct electricity.

• They all conduct electricity and attract the same metal objects.

• The all attract the same metal objects and are not soluble in water.

• The all are not soluble in water and have the same physical state.

The table lists some physical properties of two objects. Based on their properties, which of the objects is most likely metal?

• Object 1, because it is a solid that is less dense than water.

• Object 2, because all metals float in water.

• Object 2, because metals conduct thermal energy and electricity.

• Object 1, because it can be used to provide insulation for thermal energy.

Tags

NGSS.MS-PS1-2

Which of these is NOT soluble in water?

• Oil

• Salt

• Honey

• Sugar