Vocabulary
The remains or traces of an organism that lived in the past
What is a fossil
What method do scientists use to determine the absolute age of rocks
What is radioactive dating
What's the purpose of the geological timescale
What is to provide a timeline of Earth's 4.6-billion-year history
Which term describes the time it takes for half of the radioactive element's atoms 2 decay
What is a half-life?
This mineral, known as the softest on the Mohs hardness scale, is the main ingredient in baby powder.
What is talc?
The age of the rock is given as the number of years since the rock formed
What is absolute age
How could a geologist match the rock layers in one area to the rock layers in another area
What is by identifying identical rock types
How do events help geologists mark and divide geological time
create observable changes in the rock record, such as the appearance or disappearance of specific fossils or distinct sedimentary changes
What Are The Three Eras
What is the Paleozoic, Mesozoic, and Cenozoic eras?
What do you call a French cutting technique that involves finely shredding or ribboning vegetables or herbs?
What is a Chiffonade?
The age of rock compared to the ages of other rocks
What is relative age
How do geologists describe the ages of rocks?
What is Relative dating determines which rock layer is older or younger without knowing its specific age in years.
What is the geological timescale?
What is a chronological calendar of Earth's history
What were Earth's earliest multicellular organisms
Microscopic clusters of cells and macroscopic algae
What is the primary ingredient used to make traditional pasta
What is Semolina flour?
The geological principle that states that in horizontal layers of sedimentary rock, each layer is older than the layer above it
What is law of superstition
What is the difference between relative age and absolute age?
What is the relative age that determines if an object is older or younger than another? Absolute age gives the age (in years)
Why do scientists constantly refine the geological time scale
to improve accuracy as new, more precise technology and dating methods become available
What term describes a gap in the geological record
What is an unconformity
Chicken tikka masala is a wildly popular dish, but in which city was it invented?
What is Glasgow, Scotland
To figure something out based on clues and evidence instead of a direct statement?
What is infer
How do geologists determine the relative ages of rocks?
What is they determine the relative age of rocks by looking at the rock patterns
How do scientists divide geological time
What is based on major changes in Earth's rock layers and the fossil record.
During which era was the era of reptiles
What is the Mesozoic Era?
Where were chocolate chip cookies invented?
Massachusetts