6 units · 24 lessons

Grade 10: 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.

  1. Unit 1 · 4 lessons

    DNA, Gene Expression and Mutation

    Trace sequence information and distinguish changes in DNA from traits.

    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.

  2. Unit 2 · 4 lessons

    Inheritance probabilities and their limits

    Use an explicit simple inheritance model to infer possibilities and assess probabilistic outcomes.

    Before you begin: Use a two-by-two allele table; multiply fractions; distinguish chance from a guaranteed count.

  3. Unit 3 · 4 lessons

    Evolution and Population Mechanisms

    Compare selection, drift, migration and speciation 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.

  4. Unit 4 · 4 lessons

    Chemical Bonding and Materials

    Connect electron interactions, particle structures and property 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.

  5. Unit 5 · 4 lessons

    Solutions, Acids and Concentration

    Use supplied concentration and pH models without handling chemicals.

    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.

  6. Unit 6 · 4 lessons

    Carbon, Climate and Ecosystems

    Connect carbon stores, energy balance and conditional impact 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.

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