Igneous rocks were the _____ on the planet and the ____ rocks created
Igneous rocks form when
______ and lava cool
“Ignis” in latin means
Sedimentary rocks form by the _______ of another rock
Weathering is when rocks wear down. Erosion is when rocks move by ______ all around
In time the rocks stick together forming _____
Metamorphic rocks form when rocks get very ____ and undergo high ________ and heat
Metamorphic rocks melt
Morph means
Igneous rocks usually have ______ but if you do see crystals then it is obsidian
To identify igneous rocks look for ___ bubbles that were trapped in the cooling process
Sedimentary rocks are usually
Most of the time sedimentary rocks are hard
Most _______ are found in sedimentary rocks
Metamorphic rocks have mineral grains aligned or ____ but they also look crystallized
The layers in metamorphic rocks are called _____
How are sedmemtary rocks different from igneous and metamorphic rocks? (2-3 sentences)
How are igneous and metamorphic rocks similar and how are the different? (2-4 sentences)