Unit 4 Objectives and Due Dates

Objective 1 - How do we classify matter?

Learning targets:

• What are the differences between pure substances and mixtures?
• What are the types of pure substances?
• What are the types of mixtures?
• What are the differences between atoms, molecules, compounds, and elements?
• How do we write formulas for molecules and compounds?

Objective 2 - Separation techniques

Learning targets:

• What physical properties can be used to separate mixtures?
• How do distillation, chromatography, filtration, evaporation, and separating funnels work?

Objective 2 Materials

Separating Mixtures, CK-12 (reading)

Objective 3 - How are chemical and physical changes different?

Learning targets:

• How can we distinguish between chemical and physical changes at a macroscopic level?
• How can we distinguish between chemical and physical changes at the particle level?

Objective 3 Materials

Chemical vs Physical Changes, Annenberg Learner (reading)

Objective 4/5 - What is the model of the atom?

Learning targets:

• How has the model of the atom evolved over time?
• What evidence supports the various models of the atom?
• How can the model of the atom be used to explain phenomena?
• What is Bohr's model of the atom?