Science Unit 4
Terms in this set (34)
What causes atmospheric pressure?
Gravity and the weight of the air.
What are the different technologies that measure weather? Which ones are stationary and which ones are moving?
Ships or boats, satellites, airplanes are moving ones. A ground station is a stationary one.
What is condensation?
When water goes from being a gas to a liquid.
What instrument is used to measure humidity?
How do warm currents and cold currents influence cities near the ocean?
If it is warm current it brings warm temperatures. If there is a cold current it brings cooler temperatures.
What are the two main factors that determine climate?
Temperature and precipitation
What causes some areas of Earth to receive less intense solar energy than others?
It is because the Earth is round and some area receive more sun than others.
Why do coastal areas have cooler summers than inland areas at the same latitude?
It is close to water and it moderates the temperature
What is measured using a barometer?
Where does the polar jet stream flow in North America? Which direction?
It flows in the northern part of America. It flows from the west to the east
What is the rainshadow effect?
One side a mountain receives rain,. And the other side doesn't receive any rain
Which unit is used to measure how warm or cool the air is?
Fahrenheit and Celsius
What conditions do we need for snow to fall?
It needs to be 32 degrees Fahrenheit and below
What is the freezing point of water in Celsius?
0 Degrees Celsius
What is a direct result of differences in air pressure?
What kind of weather does condensation cause?
Clouds, fog, dew, mist
What does high humidity indicate?
The is a lot of water vapor in the air
What best describes why latitudes closer to the equator have warmer climates?
The equator has more direct sunlight because the Earth is round and curved
What are surface currents?
Currents at the surface
How does the wind affect weather?
It can move air masses with cool or warm temperatures. It can also bring moisture/precipitation
What instrument measures wind?
The condition of Earth's surface at a particular time and place is?
How is precipitation measured?
What are the three types of fronts? Be able to to recognize a picture of each.
Cold front, warm front, stationary front. Pictures on page 237
What is visibility?
How well or far you can see
What happens to air pressure as you go higher up in the atmosphere?
Does the water cycle affect weather?
Does warm air rise? Does cold air rise?
Warm air rises cold air doesn't
Has the Earth been colder than it is today?
Does the Ocean play a role in climate?
Yes because it can affect the temperatures and moderates them
Can a high pressure system spiral into a low pressure system?
Explain what is meant by the term climate. Then explain how an area's climate is affected by its proximity to a large body of water.
Climate is weather over a long period of time including temperature and precipitation. If you are close to a body of water the temperature is moderated by the large body of water
What are the three main climate zones on Earth? Where are they on Earth?
Polar, temperate, tropical. Tropical is in the middle. Temperate is on both sides of the tropical. Polar is on the very top and bottom
Be able to describe and explain the temperature typical of the three major climate zones.
Tropical temperatures are the warmest because the have the most intense sunlight. Polar are the coldest because they don't receive as much sun. Temperate temperatures is between tropical and polar.
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