Weather

What is weather?

• The amount of moisture in the air

• The number of clouds in the sky

• The speed of the wind

• The state of the atmosphere at any particular time.

Which of the following devices measures air pressure?

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What are the characteristics of a high-pressure system?

• Wind and rain

• Humidity and thunder

• Extremely hot temperatures

• Clear skies and sun

How are the convection currents in the lava lamp different than convection currents in the atmosphere?

• warm air in the atmosphere sinks instead of rises

• The earth gets its heat from the sun and the lava lamp gets its heat from the light bulb below.

• Convection cells in the atmosphere flow in the same direction instead of opposite

• Cold air is less dense instead of being more dense.

The number one thing hurricanes need is...

• warm water

• cold air from cold fronts

• cold water

• strong warm front

What causes global convection currents

• Forests

• greenhouse gases

• more land forms

• uneven heating of the Earth's surface

Where do warm ocean currents come from

• the poles

• near the land

• the equator

• middle of the oceans

How to oceans form hurricanes?

• warm air over the equator rises and faster than cold air from the poles

• warm waters provide the energy for hurricanes

• cold water provides the energy for hurricanes

• cold air at the poles is more dense and falls faster than warm air from the equator

How to warm waters contribute to hurricane development

• evaporating water adds heat to the atmosphere

• rising tides cause the ocean level to rise

• waves cause the hurricane to develope

• currents carry the warm water to the hurricane

What city will experience decreasing temperatures in the next day?

• Denver

• El Paso

• Memphis

• Los Angeles