A | B |
 | conglomerate |
 | gneiss |
 | limestone |
 | marble |
 | obsidian |
 | pumice |
 | quartzite |
 | rhyolite |
 | sandstone |
 | shale |
 | slate |
 | granite |
Igneous rocks can have a ______. | shiny, glass-like surface |
Sedimentary rocks may contain ______ | fossils |
This type of rock has layers mostly shades of one color | sedimentary rocks |
This type of rock has layers that are wiggly or fuzzy looking | metamorphic rocks |
Metamorphic rocks can have __________. | shiny crystals on the surface |
This rock type can have small holes from trapped gas bubbles | igneous rocks |
Sedimentary rocks have _____. | mostly straight, grainy layers |
This rock may have visible sand or pebbles in the layers | sedimentary |
Sedimentary rocks won't have ____. | crystals |
Metamorphic rock may have | several different colors |
Metamorphic rocks are dense | and tightly packed |
Igneous rock is ____ color when cooled quickly | one |
Metamorphic rock is waxy or _____ | baked looking |
Igneous rocks can be speckled with crystals when cooled ___ | slowly |
_______ rock can have more than one color when cooled slowly | igneous |