Birth of Rocks Will a Mountain Last forever? Mystery #3

Front

What is root wedging?

Back

Root wedging is the process where seeds fall into cracks in rocks, and as the roots grow, they can split the rocks apart.

Tags

NGSS.MS-ESS2-2

Front

Why did the Mayans clean the cracks in their pyramids?

Back

The Mayans swept the cracks to prevent seeds from growing in them.

Front

How do rocks at the top of a mountain differ from those at the bottom?

Back

Rocks at the top of the mountain are more jagged compared to those at the bottom.

Front

What is ice wedging?

Back

Ice wedging is the process where frozen water expands in cracks of rocks, causing them to split.

Tags

NGSS.MS-ESS2-2

NGSS.MS-ESS2-4

Front

How does water break a rock when it freezes?

Back

When water freezes, it expands and takes up more space, which can cause the rock to split.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Front

What is the main cause of weathering in rocks?

Back

Weathering in rocks is mainly caused by natural elements like water, ice, and plant roots.

Tags

NGSS.MS-ESS2-4

Front

What happens to rocks over time due to weathering?

Back

Over time, weathering can break down rocks into smaller pieces and change their shape.

Tags

NGSS.MS-ESS2-2

Front

What role do plants play in breaking down rocks?

Back

Plants can break down rocks through root wedging, where their roots grow into cracks and split the rocks.

Tags

NGSS.MS-ESS2-2

Front

What is the difference between physical and chemical weathering?

Back

Physical weathering breaks rocks into smaller pieces without changing their chemical composition, while chemical weathering alters the minerals in the rocks.

Front

How can temperature changes affect rocks?

Back

Temperature changes can cause rocks to expand and contract, leading to cracks and eventual breaking.