Matter and Mixtures Test

Substances A and B are both white crystals. A student stirs 5 grams of substance A into one container of water, and 5 grams of substance B into another container of water. After ten minutes none of substance A is visible in its container and all of the crystals of substance B can be seen on the bottom of its container. What is the most likely conclusion that can be drawn from these observations?

• Substance B is soluble in water, but Substance A is not.

• Both Substance A and Substance B are soluble in water.

• Neither Substance A nor Substance B is soluble in water.

• Substance A is soluble in water and Substance B is not.

Tags

NGSS.MS-PS1-2

Students placed four round objects in an aquarium full of water. Some of the objects floated and others sank, as shown in the illustration above. Which of the following is a correct interpretation of the data?

• Objects W and Y have the same density as water and objects X and Z are more dense than water.

• Objects W and Y are more dense than water and objects X and Z are less dense than water.

• Objects W and X are less dense than water, and objects Y and Z are more dense than water.

• Objects W and Y are less dense than water, and objects X and Z are more dense than water.

Tags

NGSS.MS-PS2-4

Students were asked to follow the laboratory procedure shown below: 1. Measure out 10 grams of salt. 2. Dissolve the salt in 150 ml of pure water. 3. Evaporate the water. 4. Measure the mass of the remaining salt. Which of the following do you predict for the measurement of the mass of the remaining salt in step 4?

• 5 g

• 10 g

• 15 g

• 0 g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the diagram below, what terms refer to the changes in state of matter indicated by arrow 1 and arrow 2?

• freezing, evaporating

• melting, freezing

• evaporating, melting

• melting, evaporating

A glass of ice water begins to form small droplets of water on the outside. What is the best explanation for where these water droplets come from?

• Water in the air condenses on the cold glass.

• Air pressure pushes water up out of the glass.

• Water leaks through small holes in the glass.

• As the ice melts, it creates more water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

This table lists magnetic and nonmagnetic objects. Which object should be placed where the question mark is, to complete this chart?

• Wool mitten

• Plastic bottle

• Iron washer

• Rubberband

A student created a table listing the properties of a sample of matter. Based on the table below, the student collected data on a sample of which of the following types of matter?

• Sand

• Salt

• Iron filings

• Vinegar

Tags

NGSS.MS-PS1-2

A student collects data on the properties of four different substances and records them in a table. What makes Material 4 different from the other materials? Only Material 4 -

• has a mass less than 25 grams

• does not dissolve in water

• is not magnetic

• looks like colored crystals

Students filled a graduated cylinder with water and oil. Next they placed two samples, Substance X and Substance Y, in the same graduated cylinder. The illustration shows the final positions of all these materials. What conclusion can be drawn from this observation?

• Water is less dense than oil.

• Substance X is less dense than water.

• Substance Y is less dense than oil.

• Oil is more dense than water.

The diagram below shows one container with oil and water and another container with oil and a cork. Which diagram shows what would most likely happen if oil, water, and a cork were all placed in one container?

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Tags

NGSS.MS-PS1-2