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 name of the gas cloud that contracted to form the solar system.
What is Planetary Nebula?
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 trait of this type of igneous rock.
What are Intrusive Igneous rocks?
This is how long ago the solar system formed.
What is 4.6 billion years ago?
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%?
This is the name for solids that fall out of solution, often due to evaporating water.
What are precipitates?
This felsic igneous rock is found in lots of kitchen countertops.
What is granite?
What is Pyroxene?
A mineral that is harder than a fingernail, but can NOT scratch a glass plate has this possible hardness range.
What is between 2.5 and 5.5?
This is the percentage of rubidium-87 left after undergoing 4 half-lives.
What is 6.25%?
DAILY DOUBLE: The process responsible for converting igneous rocks into sedimentary rocks.
What is mechanical and chemical weathering?
These two processes result in the formation of igneous rocks.
What is cooling and solidification?
This "explosive" event is responsible for creating heavier elements like gold and silver.
What is a supernova?
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 might not be a great option for dating a fossil that is 200,000 years old.
What is carbon-14?
These are the two characteristics of minerals that rocks do NOT share.
What are definite chemical composition and internal arrangement of atoms?
Extrusive igneous rocks with little gas pockets are described as having this texture.
What is vesicular?
A mineral crystallizing at 650 degrees is likely to produce this specific rock.
What is granite OR rhyolite?