1Aht Nutrition Phase transitions

What do you remember about the phases of matter?
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Slide 1: Open vraag
Natuurkunde / ScheikundeMiddelbare schoolhavo, vwoLeerjaar 2

In deze les zitten 17 slides, met interactieve quizzen, tekstslides en 1 video.

time-iconLesduur is: 45 min

Onderdelen in deze les

What do you remember about the phases of matter?

Slide 1 - Open vraag

Do you think a phase can change into another phase?
A
Yes
B
No

Slide 2 - Quizvraag

Slide 3 - Video

Phase changes

Slide 4 - Tekstslide

Learning objectives
I can name the six phase changes that substances can undergo

I can describe how the phase transitions of water play a key role in all kinds of weather phenomena

I can use the particle model to explain why temperature plays a key role in melting and evaporation



Slide 5 - Tekstslide

Phase transitions 
As we know, weather can change suddenly

A day can start sunny, but end up with a thunderstorm

Slide 6 - Tekstslide

Phase transitions 
There are six phase transitions 
We will walk through these transitions with examples and pictures


Slide 7 - Tekstslide

Freezing/solidification liquid->solid
When water freezes it turns into ice

The term solidifying is also used, but for things that turn solid at temperatures above 0 degrees Celsius like candle wax

Slide 8 - Tekstslide

Melting solid->liquid
When the temperature rises, the solid ice will turn into a liquid again

Slide 9 - Tekstslide

Evaporation liquid->gas
Over time, when it is warm enough, water can turn into invisable water vapour

Slide 10 - Tekstslide

Condensation gas->liquid
But when warm air cools down and meets a cold object, water vapour condenses out and turns water vapour into visable water

Slide 11 - Tekstslide

Deposition gas->solid
When the temperature drops below 0 degree Celsius, water vapour turns into solid ice

Slide 12 - Tekstslide

What changes in a phase transition?
A
Nothing changes
B
The distance between the molecules
C
How hard the molecules vibrate
D
The composition of the atoms in the molecules

Slide 13 - Quizvraag

A substance can change from solid to liquid. This is called a phase transition.
What is the name of this phase transition?
A
freezing
B
evaporation
C
melting
D
deposition

Slide 14 - Quizvraag

Do particles change shape or size during a phase change?
A
Yes
B
No

Slide 15 - Quizvraag

Do molecules change during phase transition?
A
Yes
B
No

Slide 16 - Quizvraag

How can a substance change from the solid to the liquid phase?
A
a decreasing temperature
B
an increasing temperature
C
by shaking
D
not possible

Slide 17 - Quizvraag