Practice - Macmillan/McGraw-Hill

Name
As I read, I will pay attention to punctuation and inflection.
Can you guess what main force created the Grand
9 Canyon? It was the mighty Colorado River.
16 The Colorado is a huge, powerful river. In the spring,
26 melted snow fills the river, and it becomes swift and wild.
37 The river picks up rocks, huge boulders, sand, and pebbles
47 and carries them along. Over millions of years, this gritty
57 river water carved into layer after layer of rock. It carved the
69 deepest canyon of all, the Grand Canyon.
76 One reason the river could carve the rock is that the rock
88 was soft. Soft for rock, that is! Back in time, before there was
101 a Grand Canyon, oceans covered the land.
108 Over millions of years, broken seashells, sand, mud, and
117 clay fell to the bottom of the sea. These small bits of matter
130 that settle on the sea bottom are called sediment. Over
140 millions of years, the sediment turned into rock, called
149 sedimentary rock. And this rock was soft enough for the river
160 to be able to carve a deeper and deeper path through it.
172 But the Colorado River was not the only force to form the
184 Grand Canyon. 186
Comprehension Check
Fluency
1. How did the Colorado River help form the Grand Canyon? Main Idea and
Details
2. What is sedimentary rock? Main Idea and Details
Words Read –
Number of
Errors
=
First Read – =
Second Read – =
196
Skunk Scout • Grade 5/Unit 6
Practice
Words
Correct Score
At Home: Help the student read the passage, paying
attention to the goal at the top of the page.
© Macmillan/McGraw-Hill