Year 10 Science · FHC 10SSCIB
Chemical Reactions
24 Apr — 22 May 2026 · 17 lessons · 5 weeks
Updated class plan
What we are doing before the Chapters 3-4 CAT
Fri 15 May · P2
Open-book consolidation
Finish 4.4b Acid reactions, then 4.5 Collision theory. You may use the website, textbook, and your notes.
Fri 15 May · P3
§4.6 temperature + surface area
Hotter particles → more energetic collisions; crushed solid → more exposed atoms. Read rate qualitatively from a volume-vs-time graph.
Tue 19 May · P4
§4.6 concentration + catalysts
Finish the four rate factors: more particles per volume → more collisions; catalyst lowers Eₐ without being consumed; enzyme examples.
Wed 20 May · P5
§4.7 exo/endo + energy profile diagrams
Classify reactions from energy evidence, then draw the energy profile: reactants, products, Eₐ, and ΔE.
Fri 22 May · P2
Chapter 4 CAT revision
Cheat-sheet walkthrough: §4.4 acid reactions (heaviest), collision theory, energy profiles, rate graph. Final Q&A before the CAT.
Fri 22 May · P3
CAT
Chapters 3-4 (Periodic Table + Chemical Reactions). 60 minutes, 31 marks: Section A is 17 MCQ, Section B is 14 marks.
5-week unit · 17 lessons
Ch.4 · chemical reactionsWeek 02
§4.2 · §4.3TueP4
Decomposition needs an energy input: heat, electricity, or light.
28 Apr
§4.2
WedP5
A more reactive metal kicks a weaker one out — the activity series predicts.
29 Apr
§4.3
FriP2
Two compounds swap partners; the signal is a precipitate, water, or a gas.
1 May
§4.3
FriP3
Net ionic in 4 steps; solubility rules tell you which species to keep.
1 May
§4.3
Week 03
§4.2-§4.3 · §4.4TueP4
Refresh §4.2 + §4.3: classify, predict, balance, then read net ionic in 4 steps.
5 May
§4.2-§4.3
WedP5
pH tracks the hydrogen-ion concentration; indicators map pH to colour.
6 May
§4.4
FriP2
Acid + base → salt + water; the H⁺ + OH⁻ pairing drives it.
8 May
§4.4
FriP3
Reactive metal + acid → salt + hydrogen gas (only for above-H metals).
8 May
§4.4
Week 04
§4.4 · §4.5 · §4.6TueP4
Acid + carbonate → salt + water + carbon dioxide; + oxide → salt + water.
12 May
§4.4
WedP5
Reactions need collisions with enough energy AND the right orientation.
13 May
§4.5
FriP2
Use collision theory to predict, justify, and diagram successful collisions.
15 May
§4.5
FriP3
Hotter → more energetic collisions; more surface = more exposed atoms to collide.
15 May
§4.6
Week 05
§4.6 · §4.7 · CAT revision · CATChapters 3-4 CAT — Fri 22 May P3. Fri P2 is revision.
TueP4
More particles per volume = more collisions; catalyst lowers activation energy.
19 May
§4.6
WedP5
Classify exo/endo from temperature change, then draw and read the energy profile.
20 May
§4.7
FriP2
Walk through the §4.2-§4.7 cheat sheet. Energy profile reference kept on this page.
22 May
CAT revision
CATP3
Chapters 3-4: Periodic Table + Chemical Reactions
60 min · 31 marks