Changes of States of Matter

Look at this picture carefully.

The picture shows the changing states of matter in the term of ...

• melting

• sublimation

• evaporation

• freezing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Explain the changing states in this picture!

Answer explanation

Snow flakes form from the changing of gaseous state to solid state (deposition).

Tags

NGSS.MS-PS1-4

Which of these options described best about the particles in solid?

• Particles are not packed as closely together.

• Particles are packed very closely together.

• Particles fill the container shape.

• Particles are moving around one another.

What is the main indicator of the changing states to be happened?

• temperature

• shape

• size

• volume

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Label the change of states.

a

b

c

d

e

vaporization

sublimation

melting

freezing

condensation

Tags

NGSS.MS-PS1-4

What is the freezing point of water?

• 0 ⁰C

• 100 ⁰C

• 25 ⁰C

• 80 ⁰C

When evaporation is happening, matter in a liquid state changes into the gaseous state by adding the ...

• cooling point

• heat temperature

• volume water

• shape of container

Tags

NGSS.MS-PS1-4

Look at this picture carefully and describe each of particles in solid, liquid and gaseous state!

Answer explanation

Particles in solid are close and pack together.

Particles in liquid have more space between.

Particles in gaseous can move freely.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What is the boiling point of water?

• 0 ⁰C

• 100 ⁰C

• 25 ⁰C

• 80 ⁰C

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When thermal energy is increased in a solid, what change in state is happening?

• Melting

• Evaporation

• Freezing

• Condensation

Tags

NGSS.MS-PS1-4