Types of rocks
Use vocabulary for Earth's geological processes and rock types — igneous, sedimentary, metamorphic, erosion, weathering, deposition, fossil, sediment, strata, permeable, impermeable — and apply these when explaining how rocks form and how landscapes change over time
Lesson
Set out your lesson
“Types of rocks means naming rock types (igneous, sedimentary, metamorphic) and process words like weathering, erosion, and deposition. We will practise once together, then check a fresh example.”
Bring to the table
- Three rock samples or photos labelled igneous, sedimentary, metamorphic (or household stand-ins)
- Word cards: weathering, erosion, deposition, fossil
Extra for the adult
Worked example. Igneous rock cools from melt. Sedimentary rock forms from layered sediment. Weathering breaks rock; erosion carries bits away.
Optional challenge. For Types of rocks, explain permeable vs impermeable with sponge vs plastic lid.
What to notice. Keep one parent note: types matched; process word; support used. This session samples rock vocabulary, not mastery of every landscape.
Share and support
Family records and proof options
Keep a record of your learning
Save photos, notes, and attendance. Export a proof packet for compliance or portfolio reviews.
Practice this concept
Start practiceTypes of rocks practice
Use rock-type and process words for how rocks form and landscapes change.
Free · no login · no ads · Practice answers and completion are not saved. Parent observation remains the lesson record.
Learning resources
Extra practice links — they do not replace Gakuva’s teaching approach.
National Park Service · Practice link — not the full lesson
Rocks and Minerals
Before you open · source notes
Rocks and Minerals supports Types of rocks. An adult previews and guides; this is a learning page, not a scored quiz.
Free educational page, no sign-in required for the tested path.
Before you openAsk the learner one fact they learned and one question they still have.
Opening this link does not save learning or assess mastery.
Source, access and review notes
Public National Park Service page. An anonymous GET on 2026-11-12 returned HTTP 200 with no login or payment prompt for this URL. Opening the link does not save practice or assess mastery. An adult should preview and guide the learner.
National Park Service. “Rocks and Minerals.” External page; Gakuva does not copy, host, embed, or redistribute materials.
Unknown — link only
Check understanding
- Correctly classify igneous, sedimentary, and metamorphic rocks and explain in one sentence how each type forms
- Use 'erosion', 'weathering', and 'deposition' correctly as three distinct stages in a sequence
- Explain how fossils form using 'sediment' and 'sedimentary rock' correctly
“Could your child explain the difference between a rock being weathered and being eroded — those are actually two different things?”
Curriculum record
- Type
- Language
- Subject
- Science
- Domain
- Earth's Systems
- Age range
- Ages 9–11
Standards