Q3 CSA Review Part 1

Sugar can melt and sugar can dissolve. Choose each statement that explains what happens at the particle level when melting or dissolving occurs.

Select all that apply.

• Sugar melts when its particles get soft enough to turn into liquid.

• Sugar melts when kinetic energy increases enough for the particles to move past one another.

• Sugar dissolves when its particles get soft enough to turn into liquid.

• Sugar dissolves when a liquid breaks particles away from the solid substance.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What goes in letter A?

• Condenses

• Freezes

• Evaporates

• Melts

Tags

NGSS.MS-PS1-4

What goes in letter B?

• Condenses

• Freezes

• Evaporates

• Melts

Tags

NGSS.MS-PS1-4

What goes in letter C?

• Condenses

• Freezes

• Evaporates

• Melts

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What goes in letter D?

• Condenses

• Freezes

• Evaporates

• Melts

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the boiling point of water?

• 0 degrees Celsius

• 32 degrees Fahrenheit

• 100 degrees Celsius

• 0 degrees Kelvin

Tags

NGSS.4-PS3-2

Compare the particles in a sample of liquid water and the particles in a sample of solid water (ice).

• Particles in the liquid are smaller than the particles in the solid.

• Particles in the liquid move past each other, and particles in the solid cannot.

• Particles in the liquid are less firm than the particles in the solid.

• Particles in the liquid are moving, and the particles in the solid are not moving.

Tags

NGSS.MS-PS1-4

Solid X is placed in contact with solid Y. Heat will flow spontaneously from X to Y when -

• X is 20° C and Y is 20° C

• X is 10° C and Y is 5° C

• X is -25° C and Y is -10° C

• X is 25° C and Y is 30° C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A student put a cap on a bottle, trapping room-temperature air inside. He put the bottle in the freezer for 15 minutes, then took it out and saw that the bottle looked different. What caused the bottle to change shape?

• Some of the air particles got out of the bottle.

• The air particles in the bottle got closer together.

• The air particles settled to the bottom of the bottle.

• The air particles cooled and became smaller.

Tags

NGSS.MS-PS1-4

During the summer it’s cooler in the basement of your home than upstairs. This heat transfer would be -

• Conduction

• Convection

• Radiation