1. Topic Objectives Lessons 1-3
Describes the states of matter (solid, liquid, gas) and how physical change of state occurs when heat/pressure is added or removed
Identifies the difference between solids, liquids and gases at the particle (atomic) level
Describe what we see in regards to energy changes when changes of state occur (qualitative)
Draw and label a simple (Dalton) atomic model
List and describe the differences between elements and compounds,
Name the chemical symbols and formula for common elements and compoundsH2, Cl2, H2O, CH4, N2, C2H4, CH3OH and CO2
State that matter cannot be created or destroyed (conservation of mass) and understand that this is used to balance chemical reactions and predict products

2. States of Matter Key words: dilos, udliiq, sag, zengefri intpo
All students will be able to label the states of matter (solid, liquid, gas) using diagrams of the particle theory of matter – grade C
Most students will be able to describe how physical change of state occurs when heat/pressure is added or removed using particle theory - B
Some students will be able to explain what we see in regards to energy changes when changes of state occur (qualitative) -A

3. Starter Grade C – Match up 5 key words to definitions
In this task you will have to complete page 3 from your class booklet.
Grade C – Match up 5 key words to definitions
Grade B – Match up 10 key words to definitions
Grade A – Match up 15 key words to definitions

4. Changing State Activity
When objects undergo changes of state we use the words you have just matched up to describe what is happening in each process.
TASK
Using the bottom of page 3 complete the changes of state between ice water and water vapour. Copy and complete the diagram below

5. Particle Theory
Substances can exist in three forms: solid, liquid and gas. These are the states of matter. In each state, the particles are arranged differently, and move differently.
Particles are close together but can move past each other
Fixed Volume
Can Change Shape
Small Gaps
Particles are spread out and move fast in random directions
Lots of gaps
Will move into empty spaces
Particles are very close together
Fixed Shape
No Gaps

6. States of Matter Key words: dilos, udliiq, sag, zengefri intpo
All students will be able to label the states of matter (solid, liquid, gas) using diagrams of the particle theory of matter – grade C
Most students will be able to describe how physical change of state occurs when heat/pressure is added or removed using particle theory - B
Some students will be able to explain what we see in regards to energy changes when changes of state occur (qualitative) -A

7. Changing state and energy levels Simulation
TASK
Grade C - Describe what is happening in the simulation when we add heat or pressure to the substance
Grade B- Explain what is happening in the simulation when we add heat or pressure to the substance

8. States of Matter Key words: dilos, udliiq, sag, zengefri intpo
All students will be able to label the states of matter (solid, liquid, gas) using diagrams of the particle theory of matter – grade C
Most students will be able to describe how physical change of state occurs when heat/pressure is added or removed using particle theory - B
Some students will be able to explain what we see in regards to energy changes when changes of state occur (qualitative) -A

9. Expanding & Contracting
TASK
Read page 4 in your class booklet.
Grade C - complete the exercise on contracting and expanding materials.
Grade B - As above and describe and explain a use of expansion.
Grade A – As above and link your new knowledge of expansion and contraction to explain the following: Metal parts can be fitted together without welding using shrink fitting. The animation shows how this works.
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10. Research Homework
Poster - distillation apparatus – label and discuss what happens at the molecular level when ice turns to water and then to steam and back to water.
Grade C – Label and draw a basic distillation experiment
Grade B – Explain each stage of the distillation experiment
Grade A – Link each stage of the distillation experiment to particle theory