Minerals
Sometimes referred to as "shininess," this mineral characteristic describes the way light reflects off of it.
What is luster?
This is the name given to the amount of time it takes for half of a radioactive isotope to decay.
What is a half-life?
This type of rock forms as a result of intense heat and pressure.
What is metamorphic?
Igneous rocks are all made from this.
What is magma/lava?
This is the reason craters are difficult to find on Earth's surface.
What is weathering and erosion?
This mineral will bubble if acid is placed on it.
What is calcite?
This is the length of 1 uranium-238 half-life.
What is 4.5 billion years?
Fossils can only be found in this type of rock.
What are sedimentary rocks?
Large crystals are a common in these types of igneous rocks which are known for slow cooling.
What are Intrusive Igneous rocks?
What is Pyroxene?
Despite both being made of carbon, diamonds and graphite (pencil lead) are very different because of this.
What is internal arrangement of atoms?
A fossil forming 11,460 years ago would have this percentage of carbon-14 remaining.
What is 25%?
DAILY DOUBLE: The process responsible for converting igneous rocks into sedimentary rocks.
What is mechanical and chemical weathering?
This felsic igneous rock is found in lots of kitchen countertops.
What is granite?
This is how long ago the solar system formed.
What is 4.6 billion years ago?
This is the name for solids that fall out of solution, often due to evaporating water.
What are precipitates?
This is the percentage of rubidium-87 left after undergoing 4 half-lives.
What is 6.25%?
Clay can be compacted to form this sedimentary rock.
What is Shale?
These two processes result in the formation of igneous rocks.
What is cooling and solidification?
The youngest rock on Earth is this many years old.
What is 0?
A mineral with a metallic luster, black to gray streak, and no cleavage would also have this unique special property.
What is magnetic?
This radioactive isotope would be the best option for dating a volcanic rock with an estimated age of 4 million years.
What is Potassium-40?
These are the two characteristics of minerals that rocks do NOT share.
What are definite chemical composition and crystalline structure?
Extrusive igneous rocks with little gas pockets are described as having this texture.
What is vesicular?
Mt. Vesuvius was a devastating volcanic eruption in Pompeii, largely due to felsic magma having this property.
What is high viscosity?