P3–2A–007—04-02-2020

• Natuurkunde / Scheikunde
• Middelbare school
• vwo
• Leerjaar 2

This lesson

• Hand out properties of matter
• Important points on: 
  - Thermometer
  - Physical & chemical – Intensive & extensive
  - Solubility
  - Flamibility

Goals

• Why do we use the boiling and freezing point of water to calibrate a (celcius) thermometer?

• Define solubility

• Give examples of solvents

• Explain how to use the handout

Hand out 

properties of matter

This lesson

• Hand out properties of matter
• Important points on: 
  - Thermometer
  - Physical & chemical – Intensive & extensive
  - Solubility
  - Flamibility

Thermometer

Why do we use the freezing point and boiling point of water to calibrate a (celcius) thermomoter?

• Capillary
  

• Liquid reservoir

• Thermometer liquid

• Scale divisions

Exercise

Draw the thermometer schematic in your notebook and place the words at the right spot with a line pointing to it. 

Work in duo's 

Physical - chemical

Intensive - extensive

Solubility

What is solubility?

• Solubility: The ability of a solid, liquid or gasseous substance to dissolve in a liquid.
  

Solubility

Solubility

Examples of solvents?

• Water
• Oils
• Alchol
• Acetone

Solubility

Why does a solid dissolve better in warmer water?

• Because warmer water has a higher kinetic energy