RockStar

Mohs Hardness Scale

Scratch test: a higher number can scratch a lower one!

Explore Minerals

The Rock Cycle

Tap a rock type to learn how it forms!

🌋Igneous

🏖️Sedimentary

💎Metamorphic

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↖️

↗️

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↔️

Weathering
& Erosion

Heat &
Pressure

Compaction
& Cementing

Melting &
Cooling

Melting

Rock Quiz Arena

Test your knowledge and earn XP!

🏷️

Name That Mineral

Identify minerals from clues

🔍

Property Match

Match properties to minerals

💪

Hardness Hero

Order by Mohs scale

🪨

Rock or Mineral?

Tell them apart!

Mock Tests

Based on real Science Olympiad tests!

🏆

SciOly Practice

Competition-style questions

🌋

Rock Classification

Igneous, sedimentary & more

⚗️

Formula & Facts

Chemical formulas & uses

Explore Minerals

The Rock Cycle

Rock Quiz Arena

Mock Tests

My Collection

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