Retrieval practice Flashcards
Name the three rock families
Igneous
Sedimentary
Metamorphic
Which rock family is formed at the bottom of oceans, seas and lakes?
Sedimentary
Name the different types of igneous rocks.
Intrusive - eg. granite
Extrusive - eg. basalt
Where would an intrusive rock form?
Inside the magma
What process(es) does a rock go to for it to turn into a metamorphic rock?
heat and pressure
Name an example of a metamorphic rock.
Slate, marble
Name an example of an intrusive igneous rock.
Granite, gabbro
In one word, how does an igneous rock turn into magma?
Melting
The type of metamorphic rock formed depends on the original rock that it was made from. For example granite turns into……
Gneiss
The type of metamorphic rock formed depends on the original rock that it was made from. For example shale turns into……
Slate
The type of metamorphic rock formed depends on the original rock that it was made from. For example sandstone turns into……
Quartzite
The type of metamorphic rock formed depends on the original rock that it was made from. For example chalk/limestone turns into……
Marble
Name a use for coal.
Fire
What is the process called when sediments begin to stick together?
Cementation
What is the name do we give layers that form in sedimentary rocks?
Strata
What is the name of the process that makes sedimentary rocks?
Lithification
What is the difference between lava and magma?
Lava - molten rock above the surface
Magma - molten rock below the surface
What sticks together to form sedimentary rocks?
strata (layers)
When an igneous rock cools it CRYSTALISES. What does this mean?
Forms crystals
What are all rocks made of?
minerals
Name a use for obsidian
Weapons, Mirrors, Tools
Name a use for granite.
Kerb stones
What rock family are we most likely to find fossils in?
sedimentary
What are the four types of fossils?
Mold
Trace
Body
Resin
What are the four types of trace fossils?
Footprints
Nests
Droppings
Bites
What does the word “dinosaur” mean?
Monstrous lizard
What was the first time period of the dinosaurs?
Triassic
What was the second time period of the dinosaurs?
Jurassic
What was the third time period of dinosaurs?
Cretaceous
What name do we give to the era that included the Triassic, Jurassic and Cretaceous?
Mesozoic Era
How long ago did dinosaurs go extinct?
65 million years ago
How does a resin fossil form? (3)
When insects get stuck in the sap in a tree and it hardens and turns into amber, which preserves the body.
1 mark sap
1 mark amber
1 mark preserves body.
Why are complete body fossils rare?
It only happens when a dinosaur dies in water. It’s bones are not scattered so it is rare.
Draw out the Rock Cycle Diagram and label the rock families and processes.
