Geological Time 2

Front

What can the presence of different types of fossils tell us about environmental changes?

Back

Different types of fossils indicate that the environment has changed over time, such as transitioning from an ocean to a swamp to a forest.

Front

What is the best evidence that climate and geology have changed over time?

Back

Finding highly weathered and eroded rocks in the bed of a quickly moving stream suggests significant geological and climatic changes.

Front

In what type of environment would the oldest fossil typically form?

Back

Oldest fossils usually form at the ocean bottom.

Front

What type of rock do fossils usually form in?

Back

Fossils typically form in sedimentary rock.

Front

How has Earth's climate changed over time?

Back

Earth's climate has changed significantly, with some areas that were once warm now being cooler.

Front

What is geological time?

Back

Geological time is the timeline of Earth's history, divided into eons, eras, periods, and epochs.

Front

What are fossils?

Back

Fossils are the preserved remains or traces of ancient organisms, providing evidence of past life.

Front

What is sedimentary rock?

Back

Sedimentary rock is formed from the accumulation of sediment, often containing fossils.

Front

What does the presence of sea shell fossils on a mountain top indicate?

Back

It indicates that the area was once underwater, showing significant geological changes over time.

Front

What is the significance of fossilized impressions of palm tree leaves?

Back

They provide evidence of past climates and environments, indicating that the area was once warmer.