To use this dating method, the object must have been ________ at some point in the past.
Alive
Uranium-Lead dating is used on these, which are the building blocks of rocks.
Minerals/zircon/crystals
This dating method is best for testing this type of "hot" rock formed by volcanoes.
Igneous
If you have 100g of a "Parent" atom, how much is left after one half-life?
50g
This is the name of Batman's side kick.
Robin
If a bone has 50% of its Carbon-14 left, this many half-lives have passed
One
The Uranium "Parent" element eventually turns into this metal, which is also used in pencils (though pencils actually use graphite!).
Lead
When lava is melted, this "Daughter" gas bubbles out and escapes. When the rock hardens, the gas is trapped inside.
Argon-40
This is the name we give to the atom that is created after decay.
Daughter
Describing "low quality," addictive online content
Brain-rot
Scientists don't use Carbon dating for dinosaur bones because this "clock" runs out after about _____ years.
60,000
This is the name of the tiny, super-tough crystal that acts like a "time capsule" for Uranium.
Zircon
The half life of Potassium-40
1.3 billion
If a scientist sees a 1:1 ratio (half and half) of Parent to Daughter, they know exactly _____ half-life has passed.
One
This is the best-selling video game of all time
Minecraft
This is the specific gas that living organisms breathe in to get Carbon-14 in the first place.
Carbon Dioxide
This is the half life of Uranium 238
4.5 billion
True or false, you can use potassium argon dating to date rocks from the Cambrian era?
True
If a mystery element has a half-life of 100 years, how much time has passed once the sample has reached its third half-life?
300
This is the most watched Youtube video of all time
Baby Shark Dance
If a wooden log has 25% of it's carbon-14 left, about how many years old is it?
11,460 OR 12,000
If a Zircon crystal has almost no Lead in it, does that mean the rock is very Young or very Old?
Young
Potassium-Argon is great for dating fossils found in East Africa that are this many millions of years old.
100,000 - 4 billion years old
A rock has 1/8th of its original Uranium left. How many half-lives have passed?
Three
This animated film won the 2026 Oscar for "Best Animated Picture"
K-Pop Demon Hunters