Rocks & Minerals
This mineral is the hardest on the Mohs hardness scale.
What is diamond?
This type of map shows elevation using contour lines.
What is a topographic map?
These are the three main types of plate boundaries.
What are divergent, convergent, and transform boundaries?
This fossil type is used to date rock layers because it was widespread but only existed for a short time.
What is an index fossil?
These fluffy, white clouds usually mean fair weather.
What are cumulus clouds?
This type of rock forms from cooled magma or lava.
What is igneous rock?
On a topographic map, when contour lines are very close together, it indicates this.
What is a steep slope?
This layer of the Earth is broken into tectonic plates.
What is the lithosphere?
These are the three main eras of the Phanerozoic Eon.
What are the Paleozoic, Mesozoic, and Cenozoic?
The planet Venus is nearly the same size as Earth, but its surface is very hot (about 450 ̊C) due to this effect.
What is a greenhouse effect?
A foliated metamorphic rock that often forms from shale.
What is slate?
This is the term for the difference in elevation between contour lines.
What is contour interval?
The Himalayas formed from this type of plate boundary.
What is a continental-continental convergent boundary?
Dinosaurs went extinct at the end of this period.
What is the Cretaceous?
The Sun is directly overhead at this line of latitude during the summer solstice.
What is the Tropic of Cancer?
This mineral fizzes when it comes into contact with hydrochloric acid.
What is calcite?
On a geologic map, these types of lines represent faults or geologic contacts.
What are structural lines?
Mafic volcanoes form from this geologic feature.
What is a hot spot?
The boundary between the Paleozoic and Mesozoic eras is marked by this major event.
What is the Permian mass extinction?
These ancient layered structures formed by microbes are some of the earliest evidence of life and affected Earth's atmosphere.
What are stromatolites?
This felsic igneous rock has a glassy texture and is often black.
What is obsidian?
This type of map projection distorts size but preserves shape, commonly used in navigation.
What is the Mercator projection?
The San Andreas Fault is an example of this type of plate boundary.
What is a transform boundary?
This radioactive dating method is commonly used to date igneous rocks.
What is uranium-lead dating?
What is the name of the tool used to measure wind speed?
What is an anemometer?