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State of matter 2
RECAP 1: What are the states or matter?
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Science
Secondary Education
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RECAP 1: What are the states or matter?
Slide 1 - Question ouverte
RECAP 2: How are the arrangement of particles for each matter?
Slide 2 - Question ouverte
Change of state
Materials changes state all the time around us
The state of substance depends on the environment that surrounds and affect it
Slide 3 - Diapositive
how matter change it's state?
Slide 4 - Carte mentale
Name a few examples where changes of state of matter occur
Slide 5 - Diapositive
Can you name a few process that cause change of state to happen
Slide 6 - Question ouverte
Melting and boiling point
Melting point is the temperature at which solid changes state to become liquid
Boiling point is temperature at which it changes state from liquid to gas
Slide 7 - Diapositive
Melting point is the same as freezing point
Agree
Disagree
Slide 8 - Sondage
Can you see why?
Slide 9 - Question ouverte
Evaporation
Liquids can change to gases below their boiling point
During evaporation, liquid absorbs energy from the surrounding which cool down
Think about the feeling of alcohol on your skin
Do you feel cooler after you sweating during exercise?
Slide 10 - Diapositive
Evaporation
Water evaporate becomes liquid causing high humidity in the air
Low humidity causes dry skin and breathing problems
Slide 11 - Diapositive
Slide 12 - Diapositive
Condensation
Water vapour condense to form liquid, usually in form of droplets
When is the last time you encounter the event of condensation?
Condensation may causes mould on clothes and rotting of wood
Slide 13 - Diapositive
Slide 14 - Diapositive
Sublimation
Substance sometimes skip a phase when change of phase happens
Example: gas to solid or solid to gas
Have you seem the process of sublimation?
Slide 15 - Diapositive
Slide 16 - Diapositive
Slide 17 - Diapositive
What happen to the particles during change of state?
Slide 18 - Question ouverte
SIMULATION
https://phet.colorado.edu/sims/html/states-of-matter-basics/latest/states-of-matter-basics_en.html
Slide 19 - Diapositive
Let's test your understanding!
QUIZ IT
Slide 20 - Diapositive
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