Unit 9 - Ch 2 CKLA (8 pts)

Front

What tools do paleontologists use to excavate delicate fossils?

Back

Paleontologists use metal picks and small brushes to carefully excavate delicate fossils.

Front

What happens to water when it changes from solid ice to liquid?

Back

When water changes from solid ice to liquid, it undergoes a physical change.

Front

Why might someone have trouble sleeping in a tent?

Back

Someone might have trouble sleeping in a tent if they are worried about snakes or if the tent is uncomfortable.

Front

What should a group do after an incident occurs during an exploration?

Back

After an incident, the group should assess the situation and may choose to explore the area further.

Front

What type of rock are fossils commonly found in?

Back

Fossils are commonly found in sedimentary rocks, such as sandstone.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of a once-living organism.

Front

What is the process of fossilization?

Back

Fossilization is the process by which organic material is replaced by minerals, preserving the shape of the organism.

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 difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance but not its chemical composition, while a chemical change results in the formation of new substances.

Front

Why is it important for paleontologists to use delicate tools?

Back

Delicate tools are important for paleontologists to avoid damaging fragile fossils during excavation.