Carboniferous Period
This period is known as the age of the ________
What is "amphibians"?
This period is known as the age of the ______________
What is "reptiles"?
These are the three subatomic particles that all atoms are made up of
What are protons, neutrons, and electrons?
What is an original amount to lose half its mass?
What is Pangea?
The carboniferous period is usually divided into these two subperiods
What are Mississippian and Pennsylvanian?
This was the general climate during this period
What is cold (due to ice age)
These two particles are located at the nucleus of an atom.
What are protons and neutrons?
The half life of Zn-71 is 2 minutes. If you have 100 g initially, this is the amount of Zn-71 that will be left after 8 minutes
What is 12.5 g?
Diamonds are categorized as this type of rock
This is the percentage of coal deposits on Earth that was produced during this period
What is 90%?
This was the global ocean that surrounded the two continents during this period
What is Panthalassa?
The sum of the protons and neutrons of an atom is known as this
What is mass number?
Os-182 has a half-life of 21.5 hours. This is the number of grams left of a 10 gram sample after three half-lives
What is 8.75 g?
Mostly found shifting around under its water, this ocean is the namesake of Earth's largest tectonic plate
What is the Pacific Ocean?
During this period, the geography of the continents were called_________________
What is Pangea?
This is the percentage of species that died due to the mass extinction
What is 96%?
This is the atomic weight of Mercury (Hg)
What is 200.59 amu?
What is 15 hours?
This type of rock is formed by the accumulation of mineral at the Earth's surface
What is sedimentary?
This period existed ____________ million years ago
What is 359 to 299?
This period existed ____________ million years ago
What is 299 to 252?
If an atom has 2+ on the top right corner this atom is called a
What is a cation?
The half-life of hafnium-156 is 0.025 s. This is the time it takes for a 560 g sample to decay to one-fourth its original mass.
What is 0.05 seconds?
The name of this dark igneous rock, nicknamed "nature's glass" is formed when molten lava cools at a rapid speed
What is Obsidian?