2.2 Substances Mixtures

• Natuurkunde
• Middelbare school
• vwo
• Leerjaar 2

Today

• Substances (pure substance, atom, molecule)
• Mixtures

Solution (solvent, dissolved substance)

Emulsion

Suspension

• Separation methods

Filtration

Evaporation

What isn't a substance property?

1. color
2. smell
3. mass
4. flammability

Questions about your homework

Substance

• Atom

• Molecule

• Pure substance

Define the terms below. Write the definitions in your notebook

• Pure substance

• Atom

• Molecule

The molecule in the picture contains how many atoms?

1. 0
2. 1
3. 2
4. 3

Mixtures

1. What is a mixture?
2. What is a solution
3. What is a solute/ dissolved substance?
4. What is a solvent?
5. Does  a solution result in a new substance?

Mixtures

1. What is a mixture?
2. What is a solution
3. What is a solute/ dissolved substance?
4. What is a solvent?
5. Does  a solution result in a new substance?

Types of mixtures

Solution

Suspension

Emulsion

Exercises from textbook

11

12

15

16

17

18

Research question

You are handed a mixture of sand and salt. How would you separate the sand from the salt?

Questions

1. How can you separate the pure substances in a solution?

1. How can you separate the pure substances in a suspension?

Separation methods

• Solid and fluid: Filtration

• Solution: Evaporation

Exercises from textbook

11

12

15

16

17

18

Do you know the meaning of?

• Substances (pure substance, atom, molecule)
• Mixtures

Solution (solvent, dissolved substance)

Emulsion

Suspension

• Separation methods

Filtration

Evaporation