Grade 4 Changing Earth Review

Front

What is magma?

Back

Magma is molten rock found deep inside of the Earth.

Front

How can we prevent erosion?

Back

We can prevent erosion by using plants, mulch, and buffers.

Front

What does a geologist study?

Back

A geologist is a scientist who studies the Earth and its history.

Front

Why are fossils more likely found in lakes than in rivers?

Back

Fossils are more likely found in lakes because rivers flow fast and can wash away remains.

Front

What is a fossil?

Back

A fossil is the remains or impression of an organism in sedimentary rock.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by natural processes.

Front

What is sedimentary rock?

Back

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

Front

What role do plants play in preventing erosion?

Back

Plants help prevent erosion by holding the soil in place with their roots.

Front

What is the difference between magma and lava?

Back

Magma is molten rock inside the Earth, while lava is molten rock that has reached the Earth's surface.

Front

What is a natural disaster?

Back

A natural disaster is a catastrophic event caused by natural processes of the Earth, such as earthquakes or floods.