Amplify

According to this graph, most (96.5%) of the water on Earth is what type of water?

• freshwater

• saltwater

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NGSS.MS-ESS2-4

Most of the freshwater on Earth is in ___________ and _____________.

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NGSS.MS-ESS2-4

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The majority of surface freshwater is found in ___________.

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NGSS.MS-ESS2-4

What is this a model of? Explain what is happening in this model.

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NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

If the amplitude of a sound wave increases, what happens to the sound?

• It becomes quieter

• It becomes louder

• The pitch increases

• The pitch decreases

Tags

NGSS.MS-PS4-1

What does volume refer to in terms of sound?

• The pitch of the sound

• The color of the sound

• The loudness or softness of the sound

• The speed of the sound

Tags

NGSS.MS-PS4-1

What will happen to the water in a reservoir if people use more water, so that the flow out becomes greater than the flow in?

• The amount of water in the reservoir will increase, and may overflow.

• The amount of water in the reservoir will decrease, and may eventually run out.

Tags

NGSS.MS-ESS2-4

Who uses science knowledge to design something in order to solve a problem?

• entertainer

• editor

• engineer

• economist

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Which claim is supported by the data in the graph?

• Most of Earth’s water is in lakes, rivers, and streams.

• Most of Earth’s fresh water is in glaciers or underground.

• Most of Earth’s water is in the ocean.

• Earth’s water is split evenly between fresh water and salt water.

Tags

NGSS.MS-ESS2-4

A class is studying the effects of weather on Earth’s systems. One weather event that they are  studying is called “El Niño.”  

El Niño occurs every few years when the water in the Pacific Ocean gets warmer than usual. This  leads to increased rainfall in Southern California. 

During El Niño, the warmer ocean waters of the hydrosphere evaporate faster, leading to more  moisture in the atmosphere. This leads to weather occurrences that affect both the geosphere and the biosphere. 

Students have been asked to explain how El Niño affects the following systems in the United  States: geosphere, hydrosphere, atmosphere, and biosphere.

Reorder the following

___Clouds carry small water particles over land. 

___Clouds forced even higher by mountains produce rain.  

___Warmer water results in more water evaporating into the air. 

___As the water vapor rises in the air, it cools and condenses to form clouds.

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• Warmer water results in more water evaporating

• as the water vapor rises in the air, it cools and condenses to form clouds

• Clouds forced even higher by mountains produce rain.

• Clouds carry small water particles over land.

Tags

NGSS.MS-ESS2-4

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