Igneous Rocks
Sedimentary rocks
Fossils
The rock cycle
Random
100
One is a common Igneous rock: Basalt or Sandstone
What is Basalt?
100
Sedimentary rocks usually have this feature, which igneous rocks don’t
What are layers?
100
The remains or traces of ancient living things preserved in rock
What are Fossil's?
100
What are the three main types of rocks in the rock cycle
What are Igneous, Sedimentary and Metamorphic rocks?
100
This type of rock is...
What is Sedimentary?
200
Fast cooling gives crystals of this size
What is Small?
200
Rock formed when sediments are squashed and stuck together over time
What is Sedimentary Rock?
200
Fossils are most often found in this type of rock
What is Sedimentary rock?
200
This process changes metamorphic rock into magma, allowing it to eventually form igneous rock
What is Melting?
200
Absolute dating is measured in
What is a million years ago/mya?
300
The continuous process in which rocks change from one type to another
What is Igneous Rock?
300
Minerals that glue the grains together do this
What is Cementation?
300
Footprints, burrows and fossilised dung are known by this name, because they show behaviour rather than body parts
What are Trace fossils?
300
The breaking down of rock over time
What is Metamorphic rock?
300
The scientists who study rocks and Earth’s structure
What are Geologists?
400
Molten rock underground
What is Magma?
400
The breaking down or dissolving of rocks, soils, and minerals on Earth's surface in place
What is Weathering?
400
These fossils preserve the shape or impression of an organism without preserving the original organism itself
What are mould/cast fossils?
400
When sediments are moved from place to place
What is Erosion?
400
Uluru is made of this rock, and most of it is hidden underground
What is Sandstone?
500
This glassy volcanic rock has no crystals because it cooled so quickly
What is Obsidian?
500
This type of dating tells you whether a fossil is older or younger than another, but not its exact age
What is Relative dating?
500
State which variety of igneous rock is formed when lava cools and solidifies
What is Extrusive/volcanic?
500
The highest mountain on mainland Australia
What is Mount Kosciuszko?