7th Grade Week 16

Front

What is mass extinction?

Back

Mass extinction is the end of an era and the end of life for groups of organisms, characterized by a significant loss of biodiversity.

Front

In what type of rock would you typically find fossils?

Back

Fossils are typically found in sedimentary rocks.

Front

What does the Law of Superposition state?

Back

The Law of Superposition states that younger rock layers are on top of older rock layers.

Front

How do you use relative age dating?

Back

Relative age dating is used to put rock layers in correct order from oldest to youngest based on their position.

Front

True or False: Fossils can provide evidence of how life has changed over time.

Back

True. Fossils provide evidence of changes in life, Earth's surface, and past environments.

Front

What is sedimentary rock?

Back

Sedimentary rock is a type of rock formed by the accumulation of sediments, often containing fossils.

Front

What is the significance of fossils in geology?

Back

Fossils are significant in geology as they provide insights into past life forms, environmental conditions, and the history of Earth.

Front

Define relative age dating.

Back

Relative age dating is a method used to determine the age of rocks and fossils in relation to one another, without determining their exact age.

Front

What is the difference between absolute age dating and relative age dating?

Back

Absolute age dating determines the exact age of a rock or fossil, while relative age dating places them in order without exact dates.

Front

What are the main types of rocks?

Back

The three main types of rocks are igneous, sedimentary, and metamorphic.