LI practice quiz

An ​ (a)   is caused by the movement of parts of the Earth's ​ (b)   , its outermost layer. They happen ​ (c)   of times a year, but most are so ​ (d)   people don't even feel them. But powerful earthquakes can cause landslides, ​ (e)   , flooding, and other dangerous events.

• earthquake
• crust
• millions
• small
• tsunamis

Answer explanation

An earthquake is caused by the movement of parts of the Earth's crust, its outermost layer. They happen thousands of times a year, but most are so small that people don't even feel them. But powerful earthquakes can cause landslides, tsunamis, flooding, and other dangerous events.

Draw an image of a meandering river.

Answer explanation

The loops and curves of a slow-moving river are called meanders. Meanders are formed by erosion and occur where a river has worn away its banks. Most erosion normally occurs on the outside bend of a meander.

What does a barometer measure?

Record your video response below.

Answer explanation

A barometer is an instrument used to measure atmospheric pressure. It measures the pressure of the air around us, which can be used to predict changes in the weather. Barometers are typically used to measure the pressure of the atmosphere in order to forecast short-term changes in the weather. High pressure usually indicates fair weather, while low pressure usually indicates stormy weather.

What is the the hydrological cycle also known as?

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Answer explanation

The water cycle shows the continuous movement of water within the Earth and atmosphere. It is a complex system that includes many different processes. Liquid water evaporates into water vapor, condenses to form clouds, and precipitates back to earth in the form of rain and snow.

What is an ox-bow lake?

• A river or other body of water's steep fall over a rocky ledge into a plunge pool below

• Projections of high land that alternate from either side of a V-shaped valley

• A U-shaped lake that forms when a wide meander of a river is cut off

• Wetlands that form as rivers empty their water and sediment into another body of water

Answer explanation

An ox-bow lake is a U-shaped lake that forms when a wide meander of a river is cut off, creating a free-standing body of water. Ox-bow lakes are typically formed when a river changes course due to erosion, floods, or other natural processes. They are often found in floodplains and are usually shallow and marshy.