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Why do workers protect monuments like Mount Rushmore?
To prevent damage from weather
How do glaciers move?
They slide downhill
What are glaciers made of?
Ice
What does Logan expect to see at Glacier National Park?
Snow and ice everywhere
Why does the Great Sphinx get damaged over time?
Wind blowing sand against it
How are some lakes formed in Glacier National Park?
When glaciers melt and fill hollows
What shapes valleys in Glacier National Park?
Glaciers
Where is Glacier National Park?
Montana
What can glaciers leave behind when they melt?
Large rocks
What is one effect of glaciers grinding rock?
It forms powder that colors water, it carves a path, it makes rocks smaller, etc.
What color is the lake at Glacier National Park?
Blue
What can cause damage to granite rock?
Water freezing in cracks
What is used to fill cracks in Mount Rushmore?
Silicone
Why are workers climbing on Mount Rushmore?
To protect it from weather damage
How long did it take to complete Mount Rushmore?
14 years
How many miles is Logan’s family road trip?
8,000