Front

What is a rock?

Back

A piece of Earth's surface.

Front

What is a property of a rock?

Back

A characteristic of an object.

Tags

NGSS.MS-ESS2-3

Front

What does smooth mean?

Back

A texture that is even and has no bumps.

Tags

NGSS.5-PS1-3

Front

What does rough mean?

Back

A texture that is uneven and has bumps.

Front

What is obsidian?

Back

A smooth, glassy black rock.

Front

What is granite?

Back

A rough, speckled rock.

Front

What is amethyst?

Back

A purple variety of quartz, often used as a gemstone.

Front

What is hematite?

Back

A shiny, metallic-looking rock that is usually dark gray or black.

Front

What is texture?

Back

The feel or appearance of a surface.

Front

What is size?

Back

How big or small something is.