STAAR Matter Review

A student combines salt and pepper in a beaker of water and stirs. The students observes that the salt dissolves but the pepper does not. Which evidence supports the student's observations?

• The slat and pepper both floated on top of the water.

• The salt mixed evenly with the water and cannot be seen, while the pepper floated on top of the water.

• The salt and pepper both mixed evenly with the water and cannot be seen.

• The pepper mixed evenly with the water and cannot be seen, while the salt floated on top of the water.

Tags

NGSS.MS-PS1-2

A group of students is given four small cubes of the same size and instructed to place them in a beaker of water. One cube floats to the surface of the water. Two of the cubes float in the middle of the beaker under the surface of the water. The last cube sinks to the bottom of the beaker. Which conclusion is best supported by what the students observed?

• Two of the four cubes are soluble in water.

• All four cubes have different masses.

• Each cube is made of a different type of solid material.

• One of the cubes is more dense than the other three.

Tags

NGSS.MS-PS3-4

Students investigate the physical properties of some substances. They draw a table to show how the substances can be grouped. The students need to complete the table with column headings. Which column headings should the students use for their table?

• 
• 
• 
• 

Which of the following explains how water undergoes a change of state in one stage of the water cycle in order to move from the ocean’s surface into the air?

• Liquid water that is heated by the sun becomes a gas and rises.

• Gaseous water rises as it is cooled by the ocean.

• Liquid water that is heated by the sun condenses into rain.

• Gaseous water collects in drops of fog above the ocean’s surface.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

A teacher mixes a white powder into a beaker of water. The powder cannot be seen in the water. The teacher then heats the mixture until the water evaporates and the powder can be seen again. Which property of the powder is the teacher demonstrating? (5.5A)

• Solubility

• Relative density

• Conductivity

• Mass

Tags

NGSS.MS-PS1-2

To determine if a piece of matter will sink or float, a student would...

• Use a hand lense to examine its physical properties.

• Measure its mass by using a spring scale.

• Use a magnet to see if it attracts.

• Place the object in a container of water.

Tags

NGSS.3-PS2-1

Which liquid is the least dense?

• oil

• water

• syrup 

• plastic bottle

Which of these is the best conductor of electricity? (5.5A)

• Glass rod

• Cotton string

• Plastic tubing

• Copper penny

Which list includes only objects that are conductors?

• Paper clip, rubber, glass, copper penny

• Rubber, glass, wood, plastic

• Rubber, glass, copper penny, wood

• Paper clip, iron nail, copper penny, aluminum foil

Which is true?

• Material A is a liquid

• Material C is a solid

• Material B is a gas

• Material B is  a liquid

Tags

NGSS.MS-PS1-4