Rocks, Soils, and Fossils 3rd grade

Front

What is a rock?

Back

A rock is a solid material made up of one or more minerals.

Front

What is soil?

Back

Soil is a mixture of organic matter, minerals, gases, liquids, and organisms that support plant life.

Front

What is a fossil?

Back

A fossil is the preserved remains or traces of a living organism from the past.

Front

How do rocks change shape over time?

Back

Rocks can change shape through processes like erosion, weathering, and pressure.

Front

What is erosion?

Back

Erosion is the process by which soil and rock are removed from the Earth's surface by wind, water, or ice.

Front

What is deposition?

Back

Deposition is the process where materials are added to a landform, often after being transported by wind or water.

Front

What is the role of flowing water in shaping landforms?

Back

Flowing water can erode rocks and soil, creating valleys and canyons.

Front

What is the difference between a rock and a mineral?

Back

A rock is made up of one or more minerals, while a mineral is a naturally occurring inorganic substance.

Front

How are fossils formed?

Back

Fossils are formed when organisms die and are buried by layers of sediment, which harden over time.

Front

What is weathering?

Back

Weathering is the breaking down of rocks into smaller pieces by natural forces like wind, water, and temperature changes.