3rd Grade MYF Spiral Review

Front

What is a characteristic of a rock that has been in the ocean for a long time?

Back

A rock that is smooth and round.

Front

What is the hardness of Orthoclase on the Mohs scale?

Back

Orthoclase can scratch Apatite but can be scratched by Quartz.

Front

Why does a metal spoon get warm in hot soup?

Back

The spoon absorbs heat from the soup.

Front

What makes rocks smooth and slippery in a stream?

Back

Water moving over the rocks.

Front

What type of soil has very large particles and drains water quickly?

Back

Sand.

Front

What is the process called when water shapes rocks over time?

Back

Erosion.

Front

What is the Mohs hardness scale used for?

Back

To measure the hardness of minerals.

Front

What happens to a rock when it is weathered?

Back

It breaks down into smaller pieces.

Front

What is the main component of soil?

Back

Mineral particles, organic matter, water, and air.

Front

What is the difference between clay and sand?

Back

Clay has very small particles and retains water, while sand has larger particles and drains water quickly.