How rocks change from one kind to another
Grade 6 Science Worksheet - Building Confidence

Circle the best answer.
On a hike, Ari finds a rock made of sand grains pressed together in flat layers, with a tiny shell fossil inside. Which type of rock is it?
- Igneous
- Magma
- Sedimentary
- Metamorphic
Bo reads about lava that poured from a volcano, then cooled and hardened into dark rock. Which type of rock formed?
Side view of a volcano with a lava flow down one side; the end of the flow is drawn as dark, hardened rock. Side view of a volcano with a lava flow down one side; the end of the flow is drawn as dark, hardened rock. lava flow dark, hardened rock - Sedimentary
- Metamorphic, since the lava was hot
- Sediment
- Igneous
On the diagram, arrows from all three rock types point to magma. Which process belongs on those arrows, says Luz?
Rock-cycle diagram: boxes for igneous rock, sediment, sedimentary rock, metamorphic rock and magma; three arrows from the rock boxes to magma are labeled "?". Rock-cycle diagram: boxes for igneous rock, sediment, sedimentary rock, metamorphic rock and magma; three arrows from the rock boxes to magma are labeled "?". igneous rock sediment sedimentary rock metamorphic rock magma ? ? ? - Pressing and cementing
- Weathering
- Melting
- Just igneous rock melts; the rest cannot
An arrow on Milo's diagram runs from igneous rock to sediment. Which processes belong on that arrow?
Rock-cycle diagram: boxes for igneous rock, sediment, sedimentary rock, metamorphic rock and magma; the arrow from igneous rock to sediment is labeled "?". Rock-cycle diagram: boxes for igneous rock, sediment, sedimentary rock, metamorphic rock and magma; the arrow from igneous rock to sediment is labeled "?". igneous rock sediment sedimentary rock metamorphic rock magma ? - No arrow; igneous rock must turn metamorphic next
- Weathering and erosion
- Heat and pressure
- Melting and cooling
The kitchen counter at Noah's place is granite, with large crystals you can see. Which type of rock is granite?
Close-up drawing of granite: large interlocking crystals in pink, white and black. Close-up drawing of granite: large interlocking crystals in pink, white and black. pink white black black pink white - Igneous
- Metamorphic
- Sediment
- Sedimentary
Pia learns that slate starts as shale, a mudstone, and is changed by heat and pressure underground. Which type of rock is slate?
Two drawings side by side: crumbly gray shale, and thin, flat sheets of slate. Two drawings side by side: crumbly gray shale, and thin, flat sheets of slate. crumbly gray shale gray thin, flat sheets of slate - Metamorphic
- Sedimentary, like the shale it came from
- Igneous, because heat was involved
- Magma that cooled
Cross-section, not to scale: bits of shell settling on a sea floor and forming layers. Ren learns that much limestone forms from bits of shell piling up on the sea floor and hardening. Which type of rock is it?
Cross-section, not to scale: bits of shell settling on a sea floor and forming layers. Cross-section, not to scale: bits of shell settling on a sea floor and forming layers. bits of shell sea floor layers - Igneous rock
- Sedimentary rock
- Lava rock
- Metamorphic rock
Wind and rain slowly wear a mountain down into sand. Which energy source powers the wind and rain, in Tala's science book?
Drawing of a mountain with rain clouds and wind arrows, and sand at its base. Drawing of a mountain with rain clouds and wind arrows, and sand at its base. sand - Heat from lava
- The Moon's pull
- Earth's inner heat
- The Sun
Rock melts into magma deep underground. Which energy source does that, according to Zee's notes?
Cross-section, not to scale: Earth's crust with a pocket of magma deep below the surface. Cross-section, not to scale: Earth's crust with a pocket of magma deep below the surface. Cross-section, not to scale Earth's crust pocket of magma surface - Earth's inner heat
- Rain seeping down to the magma
- Wind blowing on the rock
- Sunlight soaking into the ground
“Cross-section, not to scale:” Granite buried deep under a mountain range is heated and squeezed into gneiss. What supplies the heat, as Esme explains?
Cross-section, not to scale: a mountain range with a granite layer far below it, under pressure arrows. Cross-section, not to scale: a mountain range with a granite layer far below it, under pressure arrows. mountain range granite layer pressure pressure - The Moon's pull on the mountain
- Earth's inner heat
- Rain rubbing on the rock
- Sunlight warming the mountain

