Science Weather Test 7th Grade

What is the primary cause of rainstorms?

Earth is heated by the Sun.

The reading on a barometer rises when the air

pressure increases

Which is responsible for creating wind?

solar energy

Barometric pressure has been dropping all day. What weather conditions will most likely occur?

stormy weather

Hurricanes are large tropical storms with heavy winds that exceed 74 miles per hour. Hurricanes produce heavy rains and may give rise to tornadoes. What is the source of the energy contained in hurricanes?

thermal energy of ocean waters

When air rises over the open ocean, a low-pressure system is formed. Which factor increases the potential of a low-pressure system developing into a hurricane in the Northern Hemisphere?

warm water temperatures in the tropics

Uneven heating of Earth's surface by the Sun causes which of these?

wind patterns

The graph shows the barometric pressure in Henderson, NV, on a day that had heavy rainstorms.

7 pm-6 pm

A sea breeze blows from the ocean toward the shore. Why does this occur?

Air over land heats faster than air over water, which causes convection.

Which MOST likely contributes to the rotational pattern of a hurricane that develops in the Atlantic Ocean?

Coriolis effect

Use the map shown to answer this question: How do you expect the weather to change at where the star is on the map after the blue triangle line has passed by?

It should get colder

Which of these BEST explains the cause of convection currents in Earth's atmosphere?

Sunlight is more concentrated in some places on Earth than others.

A high-speed wind, called a jet stream, is moving from the west to the east across the United States. Which characteristic of this jet stream is MOST important in predicting weather patterns?

The jet stream separates cold northern air from warm southern air.

The Coriolis effect deflects wind direction. How does this process impact ocean surface currents?

The wind deflects the currents to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.

Which of these MOST likely causes winds to blow on Earth?

Warm air rises and cool air falls toward Earth's surface.

Use the map shown to help you answer this question: Which of these areas is the windiest?

Where the isobars are closest together

Which of these is associated with hurricanes?

a storm that causes an area of low pressure beneath the warm air

Which condition is associated with MOST warm fronts?

cloud formations bringing precipitation

Hurricane season for the Atlantic Ocean lasts from June to November. Which factor makes an Atlantic hurricane less likely to form during the month of March?

cool ocean waters

When air is heated, it will MOST likely?

expand and rise

Which statement best describes the impact of the Coriolis Effect on global winds?

global winds travel clockwise in the northern hemisphere and counter-clockwise in the southern hemisphere

Hurricanes are large, powerful storms that form as they travel over warm ocean waters. What do oceans add to make hurricanes so strong?

heat and moisture

Ocean currents, prevailing wind patterns, and other atmospheric disturbances are initially caused by which of these?

incoming solar radiation

The blue water from the jar rises to the top of the bowl. This model is MOST likely showing which event?

the convection currents that form thunderstorms

Doppler radar shows a vertical rotating column of air with high wind speeds. Which is most likely occurring?

the formation of a tornado

When visiting the beach, Felicity observed that a breeze blew in from the ocean during the day and out toward the ocean at night. Which factor is MOST responsible for the direction of land and sea breezes in coastal regions?

the uneven heating between the land and water