States of matter

Q. 

Which change of state occurs when particles in a solid begin to move slowly past each other?

• Vaporizing

• Condensing

• Melting

• Freezing

Answer explanation

As a chemical increases in energy the particles begin to spread apart!

Draw the particles of a gas.

Answer explanation

A chemical's particles in a gaseous state are spread apart.

TRUE or FALSE: The particles in solids move around a lot and spread out.

• True

• False

Q. 

TRUE or FALSE: Liquids have a fixed volume but not a fixed shape.

• True

• False

When changing a substance from liquid to solid, the energy has to...

• Increase

• Decrease

• Stays the same

• None of the above

Q. 

When changing a substance from gas to liquid, the energy has to...

• Increase

• Decrease

• Stays the same

• None of the Above

Q. 

When changing a substance from liquid to gas, the energy has to...

• Increase

• Decrease

• Stays the same

• None of the above

Q. 

Which of the following statements is NOT true about gases?

• Gases do not have fixed shape or volume

• Gas particles have a lot of free space

• Unlike solids, gases can be compressed

• Gas particles do not move much, but vibrate

Which of the following statements is true about liquids?

• Particles do not move around much, but vibrate

• Particles have a lot of free space and spread out

• Particles are less closely packed than solids

• Liquids have fixed shape & volume

 

Which of the following statements is true about phase changes? (changes in states of matter)

• Solid turning into liquid is called freezing

• When ice melts, the energy is decreased

• When a gas turns to a liquid the energy increases

• When water boils, the energy is increased