Constructive & Destructive Forces

Constructive & Destructive Forces

Grade 5

Open Ended

What did you notice?

Poll

Do you think the canyon is still getting wider?

• Yes

• No

Poll

Do you think the canyon is still getting deeper?

• Yes

• No

Open Ended

How long do you think it took the canyon to form?

Open Ended

How do you think Providence Canyon formed?

Poll

Would you like to revise your theory?

• Yes

• No

Open Ended

How was the formation of the two canyons similar? How were they different?

Let's Play a Game! 

(Photo: Colorado River at Horseshoe Bend, Grand Canyon)

Poll

A rock is broken into small pieces from water freezing in the cracks.

• Weathering

• Erosion

Poll

Soil is washed downstream by a river.

• Weathering

• Erosion

Poll

Wind carries particles of sand that carves away part of a mountain.

• Weathering

• Erosion

Poll

An animal digs a hole in the soil to make a home.

• Weathering

• Erosion

Poll

Rocks are worn smooth by a fast flowing river.

• Weathering

• Erosion

Poll

Mudslide carries trees down a steep hill.

• Weathering

• Erosion

Poll

A sandstorm covers up a garden path.

• Weathering

• Erosion

Poll

A tree grows under a rock and the roots break the rock into small pieces.

• Weathering

• Erosion