Avalanche BrainPOP Flashcard

Front

What's the most basic underlying cause of avalanches?

Back

Stress acting quickly on snow

Front

Because snow is viscoelastic, it can:

Back

Adjust to changes over time

Front

How can triggering explosives help prevent avalanches?

Back

By preventing huge snowpacks from forming

Front

Discern (in the sentence: It is difficult to discern the location of an unstable slab.)

Back

Discover

Front

How are avalanches different from landslides?

Back

Avalanches involve snow, landslides usually don't

Front

What is the force that pulls slabs of snow downward?

Back

Gravity

Front

Which slope has the highest risk of avalanche? Options: 15-degree, 45-degree, 65-degree, 85-degree

Back

45-degree slope

Front

Which of the following is an opinion about avalanches?

• Ice, rocks, and debris can get mixed into avalanches
• Many ski resorts take anti-avalanche precautions
• Avalanches are scarier than earthquakes
• Avalanches are distinct from mudslides

Back

Avalanches are scarier than earthquakes

Front

Which weather condition increases the likelihood of an avalanche?

Back

Heavy snowfall followed by rapid warming

Front

What is the primary reason ski patrols use controlled explosions on slopes?

Back

To reduce the risk of large, natural avalanches