| Method |
Precise Learning Objective |
Linked |
Question / Activity
(Designed for maximum working out) |
Stepping Stones |
Pitstop Check
(Thinking Map) |
| W |
Physical changes are changes of state. |
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What is a physical change? Recall changes of states. |
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The use of word and symbol equations should be used throughout the scheme. |
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| D |
Physical changes occur when particles are rearranged, but not change themselves. |
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What happens to the particles in a physical change? Role play changes of state, with pupils as atoms.
With homogenous couples (boys with boys, girls with girls or blazers on/off) as molecules. They do not change partners. |
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Chemical changes occur when the make up of individual particles change. |
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When do chemical changes occur? Role play changes of state, with pupils as atoms.
With homogenous couples (boys with boys, girls with girls or blazers on/off) as molecules.
Pupils swap partners to form heterogeneous couples.
Discuss what had to happen for the them to swap partners - Come close (collide) |
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| T |
Chemical reactions result from the rearrangement of atoms |
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What happens to the atoms in a chemical reaction? Learn the chant:
- Molecules (Hands make fists)
- Collide (Bag fists together twice, sticking together the second time)
- Split (Spread fingers out)
- Rearrange (Slide hands one in front of the other, then the other way round
- Bond (interlock fingers)
- Become a new substance (roll hands to 'present' new substance) |
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| T |
Chemical reactions result from the rearrangement of atoms |
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What happens to atoms in chemical reactions? Liken role play to the incorrect:
Hydrogen plus Oxygen -> Hydrogen Oxide
H<SUB>2</SUB> plus O<SUB>2</SUB> -> 2HO
If this was a marriage then the women (non-metal) changes the end of her name. (Hydrogen is pretending to be a metal)
Then repeat role play to correct
2H<SUB>2</SUB> plus O<SUB>2</SUB> -> H<SUB>2</SUB>O |
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| T |
Chemicals that react are call Reactants. |
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What are reactants? |
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| T |
Chemicals that are produce are call Products. |
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What are products? |
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| A |
The difference between chemical and physical changes. |
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What is the difference between a chemical and a physical change? Draw particle diagrams to show physical changes and chemical changes. |
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