Global Winds
Which best describes a characteristic of the jet stream?
It forms a boundary between a cold air mass and a warm air mass.
Which will most likely result from a low-pressure weather system?
Which is most responsible for the uneven heating of the air in the atmosphere?
What two factors are needed to measure wind?
What is the cause of rising surface temperatures of the Pacific Ocean, drought in the western United States, and flooding on the Pacific coast of South America?
El Niño
Odor
Texture
What has the greatest effect on wind speed?
A pot is heated on a stove. Which process causes the metal handle of the pot to also become hot?
Which tool is used to measure air pressure?
Which best describes why winds at the beach change direction between day and night?
Because the temperatures over land and over water change.
A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change?
The mass of the balloon stays the same because the gas inside the balloon still has the same mass after it warms up.
What must occur before clouds can form?
Water vapor must lose heat energy.
Bill stands in a swimming pool and notices that the water around his feet is a lot cooler than the water near the surface. Which process causes this difference in temperature?
Jane wants to measure the amount of precipitation in her backyard for the month of January. Which weather instrument should Jane use?
rain gauge
Which is the best explanation for how air masses move across the United States?
The prevailing westerlies move air masses from west to east across the United States but may be deflected by the jet stream.
If 10 grams of water are added to 5 grams of salt, how much salt water will be made?
On a cold, cloudy day, the local weather forecaster predicts that a high-pressure system will be moving into the area in the next 24 hours. Which weather conditions will this system most likely bring to the area?
One morning, Jane notices drops of water on the outside of a window. Later in the day, she notices that the drops have disappeared. What most likely caused the drops to disappear?
Energy from the sun caused the water to evaporate.
Which would be the best way to collect data from a rain gauge?
Check and record the data every day, at the same time each day.
What will most likely result when the jet stream moves south of North Carolina?
North Carolina will experience cold weather.
The substance can also fizz, changed color, or smelled differently.
The weather forecast indicates that a warm front will be moving into the area in the next 24 hours. Which type of weather will most likely result?
Cloudy skies and rainy weather
Which process allows green plants to control the amount of water stored in their leaves?
What weather tool is used for measuring humidity?
Hygrometer