Grade 8: Science
Start with a unit whose prerequisites fit. Work through the lessons, use the study guide to review, and try the new cases before continuing.
- Unit 1 · 4 lessons
Net force, acceleration, and work
Use signed quantities to connect net forces to velocity changes and energy.
Before you begin: Add signed numbers; divide; square whole numbers; use metres, seconds, kilograms, and newtons.
- Unit 2 · 4 lessons
Motion, Momentum and Collisions
Extend force learning with motion graphs and momentum accounting.
Before you begin: Read or listen to supplied scientific descriptions and follow a labeled diagram. · Use signed quantities, ratios, exponents and the explicitly supplied model formulas.
- Unit 3 · 4 lessons
Earth, Moon and Sun Geometry
Explain phases, eclipses and seasons with distinct models.
Before you begin: Read or listen to supplied scientific descriptions and follow a labeled diagram. · Use signed quantities, ratios, exponents and the explicitly supplied model formulas.
- Unit 4 · 4 lessons
Variation, Selection and Common Ancestry
Explain population change through inherited variation and evidence.
Before you begin: Read or listen to supplied scientific descriptions and follow a labeled diagram. · Use signed quantities, ratios, exponents and the explicitly supplied model formulas.
- Unit 5 · 4 lessons
Geological Time and Earth Change
Combine relative order, tectonics and bounded rate models.
Before you begin: Read or listen to supplied scientific descriptions and follow a labeled diagram. · Use signed quantities, ratios, exponents and the explicitly supplied model formulas.
- Unit 6 · 4 lessons
Electromagnetic Spectrum and Signals
Distinguish wave properties, light behavior and communication.
Before you begin: Read or listen to supplied scientific descriptions and follow a labeled diagram. · Use signed quantities, ratios, exponents and the explicitly supplied model formulas.
Check what you can explain
The subject test uses additional supplied cases across these units. Its feedback links back to the relevant lessons. Use it to plan practice; a score on these questions is not a school grade or proof of complete subject mastery.
Open the subject test