Matter

This tool can separate what type of mixture?

• mixture of particles with different densities

• mixture of magnetic and nonmagnetic items

• solution of two solids

• mixture of particles of different sizes

Sergio wanted to find out is changing the temperature of a solution changed how quickly salt dissolved in it. First, he tested a control solution at room temperature, or 25 $\degree$  C, and measured how fast salt dissolved in the solution. Next, he cooled Solution A to 10  $\degree$  C and heated Solution B to 40 $\degree$  C and added salt to each.  How quickly did the salt dissolve in Solutions A and B compared to the control solution?

• slower for Solution A and faster for Solution B

• faster for both Solution A and Solution B

• slower for both Solution A and Solution B

• faster for Solution A and slower for Solution B

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A cup holds 125 grams of liquid water and 100 grams of ice. What is a reasonable mass for the water in the cup after the ice melts?

• 215 grams

• 175 grams

• 225 grams

• 230 grams

Tags

NGSS.MS-PS1-5

Riley and Jill are studying what happens to matter when it changes state. They found this list of statements. Which of these statements is true?

• when matter changes state, the space between particles in the matter stays the same.

• when matter changes state, its mass remains the same

• when matter changes state, its mass changes

• when matter changes state, its boiling point might also change

Tags

NGSS.MS-PS1-4

How does water change as it evaporates?

• its mass and volume decrease

• its mass increases; its volume remains unchanged

• its mass remains unchanged;its volume increases

• its mass and volume increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

There are different characteristics for each of the states of matter. Which statement describes a difference between liquids and solids?

• solids have a definite volume and liquids do not have a definite volume

• the particles in a solid are much closer together than the particles in a liquid

• solids take on the shape of their containers and liquids maintain their own shapes

• temperature can change a solid to a liquid, but it cannot change a liquid to a solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What term is used to identify a mixture that has the same composition throughout?

• solution

• liquid

• element

• compound

Which term names a substance formed by two or more types of atoms that are chemically combined?

• mixture

• solution

• molecule

• matter

Tags

NGSS.MS-PS1-1

Which is the best description of what happens during a chemical reaction?

• the physical properties of a substance are changed

• a substance goes through a chemical change

• the type of matter in the substance remains unchanged

• a new substance is formed during a chemical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the term for the amount of space something takes up?

• matter

• temperature

• density

• volume