Time Periods
This is the first time period in Earth's history.
What is Precambrian?
This fossil type includes the preserved the body types of a mosquito
What are amber fossils?
This is why oxygen was absent from the Earth's early atmosphere:
What is photosynthesizing organisms, such as plants, had not yet appeared?
This is what scientists believe the Earth looked like 4.5 billion years ago:
What is a molten rock core with no solid land or oceans?
When is June?
In this time period, mammals became the dominant land animals.
What is the Cenozoic Era?
This fossil type includes an impression of an extinct trilobite.
What are mold fossils?
What theory states that chloroplasts evolved from prokaryotes?
What is the endosymbiont theory?
This type of scientists explores a field of newly discovered dinosaur bones.
What is a paleontologist?
This person lived in Florida for awhile.
Who is Ms. Lexi?
This time period means ancient life, and included many invertebrates, fish, and amphibians.
What is the Paleozoic Era?
This fossil type includes preserving a line formed in wet sand a dinosaur dragging its tale.
What are trace fossils?
A one-million-year-old layer of sandstone lying on top of a 1.5 million-year-old layer of granite is an example of this law.
What is the Law of Superposition?
In order for a space object to have an atmosphere, they must have a large one of these.
What is mass?
These 2 classmates have a birthday in April.
Who are Chris E and Matthew?
Dinosaurs were around in this time period.
What is the Mesozoic era?
This fossil type includes a tree trunk that had slowly been filled in with minerals such as calcium.
What are petrified fossils?
This is the model that expresses the major geological and biological events during Earth's history.
What is the Geologic Time Scale?
Stanley Miller and Harold Urey simulated early atmospheric conditions to test this idea on the origin of life.
These four classroom 6 staff were born in the 1990s.
Who are Ms. Sam, Ms. Lexi, Mr. Reuben, and Ms. Fran?
What is the Mesozoic Era?
This type of fossil includes mummified or frozen remains.
What is original material?
This theory explains how living things appear, and replaced the idea of spontaneous generation.
What is biogenesis?
Who tested spontaneous generation?
Who is Franscesco Redi?
This classmate owns a SteamDeck.
Who is Owen?