Rocks and Minerals: Stories Written in Stone
Every pebble had a past life as magma, seafloor mud, or something squeezed deep underground. Sort the three rock families and meet the minerals they are made of.
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- Question 1 of 3
Rocks are sorted into how many main families?Tap an answer
Multiple Choice · 20s
- Question 2 · unlocks after question 1
- Question 3 · unlocks after question 2
- Heat and pressure deep underground turn limestone into which prized building stone?Multiple Choice · 20s
- On the Mohs hardness scale, which mineral sits at the top with a perfect 10?Multiple Choice · 20s
- Most rocks are mixtures of several different minerals.True / False · 20s
- Which natural glass forms when lava cools too quickly for crystals to grow?Multiple Choice · 20s
- What surprise hides inside a geode, a rock that looks plain from the outside?Multiple Choice · 20s
- Pumice, a volcanic rock, is so full of gas bubbles that it can float on water.True / False · 20s
- Which of these is one of the most common minerals in Earth's crust, found in most sand?Multiple Choice · 20s
- What do we call a scientist who studies rocks and what they reveal about Earth? (one word)Type Answer · 30s
- Which gemstone, the hardest natural material, is made of pure carbon? (one word)Type Answer · 30s
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