Gregg Milestones Practice Test

Which statement about the molecules in ice and the molecules in liquid water is correct?

• The molecules in ice have more energy than the molecules in liquid water.

• The molecules in ice contain different atoms than the molecules in liquid water.

• The molecules in ice have more electric charge than the molecules in liquid water.

• The molecules in ice are less free to move than the molecules in liquid water.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

NGSS.MS-PS3-4

Which of the following is a compound?

• Oxygen

• Water

• Nitrogen

• Air

Tags

NGSS.MS-PS1-1

Which symbol represents carbon?

• Ca

• N

• K

• C

Evidence of a chemical change would be a

• Melting popsicle.

• Spilled bucket of water.

• Spinning top.

• Rusting car fender.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Moisture that collects on the outside of a cold glass results from the process of

• Evaporation.

• Sublimation.

• Condensation.

• Vaporization.

A hot air balloon rises because

• Molecules become lighter when heated.

• Molecules move faster and farther apart when heated.

• Molecules are less attracted by gravity when heated.

• Molecules become charged and repel each other when heated.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

The solid, liquid, and gaseous states of water differ from each other in

• The mass of the individual atoms.

• The size of the individual atoms.

• The net electrical charge of the individual molecules.

• The average speed of movement of the individual molecules.

Tags

NGSS.MS-PS1-4

A different chemical substance is formed when a

• Piece of cloth is cut.

• Candle burns.

• Cup breaks.

• Piece of chalk breaks.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Carbon dioxide is...

• An element.

• A compound.

• A solution.

• A mixture.

Tags

NGSS.MS-PS1-1

A chemical change combining two elements results in...

• An atom.

• A compound.

• An element.

• A mixture.

Tags

NGSS.MS-PS1-5