AI Constitution

Resources · Learning tool

Education Concept Tracker

A prerequisite knowledge graph of 1590 learning concepts across 8subjects. Track what you've mastered and see exactly what you're ready to learn next — the topics whose prerequisites you've already met. Built on the Marble Open Skill Taxonomy.

Sign in to track your progress and get personalized recommendations. You can browse freely below.

Knowledge-graph map

Computing
Mastered Ready to learn LockedHover a node for its description · click to open
Computers in Everyday L…Computers in Everyday Life — frontier Identifying computers in everyday life — not just laptops but phones, tablets, smart speakers, traffic lights, washing machines; what makes something a computerReal-World RobotsReal-World Robots — locked What a robot really is — not the sci-fi version; robots in factories, robot vacuum cleaners, robot arms in surgery; that robots follow instructions given by peopleSmart Versus Not-Smart…Smart Versus Not-Smart Devices — locked Sorting objects into 'smart' (can sense and respond) and 'not smart' (just sits there); a toaster vs a smart speaker; introduction to the idea that some machines can sense and respond to the worldStep-by-Step Instructio…Step-by-Step Instructions — locked Step-by-step instructions for everyday tasks (making a sandwich, brushing teeth); that if instructions are wrong or missing, things go wrong; computers follow instructions exactly
← Back

Reactions That Release or Absorb Heat

Science · Matter & Materials · conceptual

Distinguish between exothermic reactions (release energy, temperature rises) and endothermic reactions (absorb energy, temperature falls), with everyday and industrial examples

Sign in to track this

What mastery looks like

  • Defines exothermic and endothermic in terms of energy transfer to and from the surroundings
  • Gives two examples of each type from everyday life (e.g. combustion, hand warmers; photosynthesis, cold packs)
  • Explains energy changes during changes of state (melting is endothermic, freezing is exothermic)
  • Interprets a temperature change in an experiment to classify the reaction type

Check your understanding

If Reactions That Release or Absorb Heat shook a sports cold pack to activate it and it got cold, or lit a match and it got hot, could they explain what type of reaction is happening in each case and why one gets hot while the other gets cold?

Prerequisites

Helpful

Unlocks (0 directly)

None.