Weathering

Ice wedging is an example of -

• Physical weathering

• Chemical weathering

• Both physical AND chemical weathering

Tags

NGSS.MS-ESS2-2

Lichens break down rocks by -

• Secreting acids onto rocks

• Chewing on rock with tiny dental scales

• Absorbing water from rocks and making them brittle

Tags

NGSS.MS-ESS2-2

How do plant roots physically weather rocks?

• They release acids onto the rocks

• They cause large temperature changes in rocks

• They act like a wedge in cracks of rocks

An example of chemical weathering is -

• Ice wedging

• Oxidation

• Animals burrowing

• Crashing waves

Over millions of years, weak carbonic acid can dissolve limestone to form -

• Cracks in rocks

• Caves and caverns

• Mountains and cliffs

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Carbonic acid is formed in nature when -

• Water dissolves particles of soil to form mud

• The oxygen molecules in water bond with minerals in rocks

• Water bonds with carbon dioxide in the air and/or soil

Fallen plant leaves help break down rocks as they -

• Release or leach acids as they decompose

• Get into cracks, expand, and make the cracks wider

• Scratch and wear away the surface of rocks

Tags

NGSS.MS-ESS2-2

Which Texas ecoregion gets the most precipitation and likely has more chemical weathering?

• Trans-Pecos

• High Plains

• Rolling Plains

• Gulf Coast Prairies & Marshes

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

NGSS.MS-ESS2-1

Weathering is the__________________.

• breaking down of rocks

• movement of rocks

• deposition of rocks

Tags

NGSS.MS-ESS2-2

Which of the following is an example of physical weathering?

• acid rain

• oxidation

• animals burrowing