Molecules Matter

If you could compare the amount of energy found in the molecules of a solid, liquid and gas, which molecules would have the most energy?

• The molecules of solids

• The molecules of liquids

• The molecules of gases

Tags

NGSS.MS-PS1-4

Which of the following are compounds?

• Water (H2O)

• Iron (Fe)

• Neon (Ne)

• Salt (NaCl)

Tags

NGSS.MS-PS1-1

Which of the following are molecules?

• Water (H2O)

• Iron (Fe)

• Neon (Ne)

• Salt (NaCl)

Tags

NGSS.MS-PS1-1

How are molecules in a gas arranged?

• 
• 
• 

How do particles in a solid move?

• Random and in all directions

• They role over each other (flow).

• They vibrate around a fixed point

What is this particle model picture showing?

• Solid

• Liquid

• Gas

What property of a gas is linked to its temperature?

• The weight of the gas particles

• The charge of the particles

• The average kinetic energy of the particles.

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-4

NGSS.MS-PS3-5

What causes the pressure that a gas exerts?

• Collisions with the particles on the walls of the container

• The charge of the particles

• The size of the particles

Tags

NGSS.MS-PS2-2

Pressure is defined as the ________ per unit ________. ( select the option with the correctly ordered words)

• area, force

• force, area

• mass, volume

What process occurs when a liquid absorbs energy gradually from its environment to change into a gas

• Boiling

• Evaporation

• Condensation

• Melting

Tags

NGSS.MS-PS1-4