Rocks Pre Test

When sediments are pressed together tightly, this is called ____________.

• Compaction

• Cementation

• Weathering

• Erosion

The process in which dissolved minerals crystallize and glue sediment together.

• compaction

• deposition

• organic rock

• cementation

The process when rocks break into smaller pieces due to exposure to natural elements is called

• erosion

• weathering

• sediments

Tags

NGSS.MS-ESS2-2

What is mechanical weathering?

• Process through which rocks are physically broken into smaller pieces.

• Rocks are broken down through chemical changes.

• Rocks are worn away from acid in plant roots.

• Rocks broken down by machinery.

Tags

NGSS.MS-ESS2-2

Which type of climate will have faster chemical weathering?

• Hot and Wet

• Cold and Dry

• Hot and Cold

• Cold and Wet

How do plants weather rocks?

• during photosynthesis

• when roots grow into cracks of rocks and expand the rock

• when the plant moves water from the roots to the leaves

Lichens (small green plants) growing on a large boulder release enzymes and other acids that slowly break the rock apart. This is an example of:

• mechanical weathering

• chemical weathering

The formation of stalactites and stalagmites in a cave as water mixed with carbon dioxide creates carbonic acid, which dissolves away the limestone, is an example of:

• mechanical weathering

• chemical weathering

Carbon dioxide (CO2) combines with water as raindrops fall through the atmosphere. This makes a weak acid, called carbonic acid. Carbonic acid is a very common in nature, where it works to dissolve rock. Pollutants, such as sulfur and nitrogen from fossil fuel burning, create sulfuric and nitric acid. Sulfuric and nitric acids are the two main components of acid rain, which speeds up chemical weathering.
This statue was probably destroyed by _____.

• Wind

• Humans

• Acid Rain

• Animals

Tags

NGSS.MS-ESS2-2

NGSS.MS-PS1-2

Deposition changes the Earth’s surface because bits of broken rock and soil _____

• stop rivers from flowing.

• make rich farmlands.

• are dropped in new places.

• move very slowly.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2