Igneous Rocks
What do igneous rocks start out as?
magma or lava
What are the small pieces of minerals and rock that are formed from weathering?
Sediments
How are metamorphic rocks made?
Through heat and pressure
In which type of rock are fossils found?
Sedimentary rock
What are three things that cause weathering of rocks?
Water, wind, and ice
How do igneous rocks form?
When magma cools and hardens.
Rocks are broken down into sediments by what process?
Weathering
What is the name of the metamorphic rock formed from marble? (Hint: it is found in abundance in the state of New Hampshire.)
Granite
What parts of animals and plants are usually fossilized?
The hard parts (bones, claws, teeth)
You can tell that pumice is an igenous rock because of all the ______ _____________ in it.
Air pockets (air bubbles)
Where is magma found?
Underground
Sediments are broken down by weathering and then move by what process?
Erosion
Where do metamorphic rocks form?
Underground
What would seashell fossils in an area tell you about that area?
That area was once underwater.
The process by which rocks are formed and then broken down to form new rocks is called ________________________.
The rock cycle
Where is lava found?
Above ground
Sedimentary rocks are formed by sediment pressing into what?
Layers
How does a metamorphic rock become a sedimentary rock?
Weathering & erosion
A scientist who studies fossils is a ______________.
Paleontologist
A scientist who studies rocks and the Earth is a _____________________.
Geologist
What small particles are formed when magma cools slowly underground?
Crystals
Sedimentary rocks are made from the ____________ and _____________ of sediments.
compacting and cementing
What metamorphic rock was used for chalkboards in the past?
Slate
What do fossils tell us?
Fossils tell us about things that lived in the past and how they changed.
This is an igenous rock formed when lava cools very quickly. It is shiny and has no visible air bubbles.
Obsidian