PhET States of Matter

The state of matter in which atoms are tightly packed and keep their shape.

• Gas

• Liquid

• Plasma

• Solid

Water behaves differently when heat is added in comparison to neon, argon, and oxygen. What does water do?

• Water particles only stay in the solid state no matter the temperature.

• Water particles come closer together at first then move further apart as changing from a solid to a liquid.

• Water particles skip the liquid state as heat is added to a solid and directly go into a gas.

Tags

NGSS.MS-PS1-4

Particles move __ and get __ to another as they cool from a gas.

• faster; closer

• slower; farther apart

• faster; farther apart

• slower; closer

Tags

NGSS.MS-PS1-4

What is the freezing point of water in both Celsius and Kelvin?

• 0 *C; 273*K

• 100 *C; 373*K

• 32*C; 212*K

As a substance's temperature is lowered to 0*K, what happens to the particles?

• The atoms never stop moving.

• The atoms get closer together then move apart.

• The atoms vibrate slower and eventually stop moving.

• The atoms vibrate faster and eventually stop moving.

Tags

NGSS.MS-PS1-4

Heating water to over 5,000*K creates:

• slower particles, more spinning; decrease in pressure

• slower particles, less spinning; decrease in pressure

• faster particles, less spinning; decrease in pressure

• faster particles, more spinning; increase in pressure

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

If the number of particles increases

• temperature decreases

• temperature increases

• pressure decreases

• pressure increases

To go from a gas to a liquid, energy is ___ . This is called ___.

• added; melting

• added; sublimation

• removed; condensation

• removed; freezing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

To go directly from a gas to a solid, energy is ___. This is called ___.

• removed; freezing

• added; vaporization

• added; sublimation

• removed; deposition

Tags

NGSS.MS-PS1-4

Which best described the Triple Point of a substance.

• The temperature and pressure where a substance can exist in none of the three phases.

• The temperature and pressure where a substance can exist in all of the three phases.

• This is a synonym to Triple Threat for a basketball player stance.

• An A+, a 100 average.

Tags

NGSS.MS-PS1-4