Fossils
The preserved remains or traces of living things.
Fossils
True or False: The relative age of a rock is the number of years that have passed since the rock formed, and absolute age is the age of a rock compared to the ages of other rocks.
A record of the geologic events and the evolution of life forms as shown in the fossil record.
Geologic time scale
A ball of dust, gas, and ice that orbits the sun.
Comet
Chrome, Safari, Firefox and Explorer are different types of what?
Scientists who study fossils.
Paleontologists
According to the Law of Superposition, the oldest layer of rocks is where?
At the bottom.
The unit of time into which eras are divided.
Periods
An event during which many different types of living things become extinct at the same time.
mass extinction
Who was the first female pilot to fly solo across the Atlantic?
Amelia Earhart
The change in living things over time.
Evolution
True or False: Intrusions and extrusions are always older than the rocks around them.
False: younger
The time it takes half of a radioactive element's radioactive atoms to decay.
Half life
A vertebrate that can control its body temperature, has fur, and feeds milk to its young.
Mammal
Who is credited with creating the world's first car?
Karl Benz
Describing the condition of no longer existing.
Extinct
A gap in the geological record.
Unconformity
The process by which some elements release particles and energy.
radioactive decay
What is the difference between a vertebrate and an invertibrate?
Vertebrates have backbones; invertebrates do not.
In what year was the internet opened to the public?
1993
Name the FIVE kinds of fossils.
1. Molds and Casts
2. Petrified Fossils
3. Carbon Films
4. Trace Fossils
5. Preserved Remains
A fossil that is widely distributed and represents an organism that existed for a geologically short period of time.
index fossil
Three long units of time into which time from the Precambrian through present day is divided.
Eras
What makes a frog an amphibian and not a reptile? How are amphibians and reptiles similar?
Frogs live part of its life on land and part of its life in the water. It does not have scaly skin like a reptile, but both reptiles and amphibians lay eggs.
"Ladies and gentlemen, rock and roll," were the first words spoken on what cable channel that launched at 12:01 a.m. on August 1, 1981?
MTV