Types of Rocks
Mineral Properties
Weathering
Sediments
Rivers and Glaciers
100
These are pure, solid, crystalline, inorganic and naturally-formed.
What are minerals?
100
This is the ability of a mineral to resist scratching.
What is hardness?
100
This is caused by plants growing on rocks and forcing the rocks to split apart.
What is root wedging?
100
These are tiny solid particles formed when a body of water mixes with another body of water or changes its pH.
What are chemical precipitates?
100
This property of a river determine the size of sediment/ rocks/ load it is able to carry.
What is the speed of the river?
200
These are solid and naturally-formed, but do not need to be pure, crystalline or inorganic.
What are rocks?
200
This is the easiest property of a mineral to observe, but is often inaccurate due to impurities in the mineral.
What is colour?
200
This is the removal of the outer layer of rock through heating and cooling cycles resulting in the contraction and expansion of the rock.
What is exfoliation?
200
This is a sediment not formed from rocks.
What is non-clastic?
200
This valley shape indicates that the valley was created by a glacier.
What is a U valley?
300
These are formed from pieces of other objects, through weathering, erosion, deposition and lithification.
What are sedimentary rocks?
300
This is determined by scratching the rock on a hard white tile.
What is streak?
300
This results in limestone caverns and is caused by the natural carbon dioxide in our air, as well as pollution.
What is acid rain?
300
This is a sediment formed from rocks.
What is clastic?
300
This can be created when a river cuts off its own meander.
What is an oxbow lake?
400
These are formed under heat and pressure. They have larger crystals, the crystals form sheets and new minerals may be formed.
What are metamorphic rocks?
400
This could include properties such as smell, taste or reaction with acid.
What are other mineral properties?
400
This is when something hits against a rock, such as when a river or windstorm smashes small particles against a rock wall.
What is abrasion?
400
This is a sediment formed from living things, like plants or animals.
What is organic?
400
This is a pile of unsorted rocks left behind by a glacier.
What is a moraine?
500
These form from the melting and re-cooling of rocks.
What are igneous rocks?
500
This is the shape into which a mineral naturally breaks.
What is cleavage?
500
This is caused by water seeping into cracks, freezing and expanding.
What is frost wedging?
500
This is a sediment formed from water evaporating.
What is evaporite?
500
This is the curviness of a river and it increases over time.
What is meander?
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