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What does density mean?
The measurement of the amount of matter in given space.
What does altitude mean?
The height of an object relative to sea level.
What is humidity?
The amount of moisture (water vapor) in the air.
What is precipitation?
It is when water and become heavy and fall down to Earth.
What is sleet?
Frozen pellets that are mixed with snow and rain, occurs and then refreezes and falls into cold air.
What is the matter in the air?
Gas molecules.
True or false:
If altitude decreases density increases.
True.
What is dew point?
It is the temp. when dew forms on surfaces.
What is rain?
Liquid precipitation, occurs when frozen water melts due to the warm air and falls into warm air as a liquid.
What is hail?
Lump of ice, occurs when frozen water melts, then refreezes then alternates between melting and refreezing, forming a lump of ice.
What causes air to be more dense the closer you are to the surface?
Gravity.
Why is it harder to breathe at a higher altitude?
Because there is a lower density of oxygen.
How is dew formed?
It is formed when water vapor condenses, at night, into water droplets on plant surfaces.
What is snow?
Atmospheric water vapor frozen into ice crystals.
What is a thunderstorm?
When warm air rises quickly.
This causes thunder and lightning.
True or false: The further away you get from the surface, the less atmospheric density there will be.
True.
What is relative humidity?
The amount of moisture in the air compared to how much water vapor the air can hold.
1)How do clouds form?
2)What is the difference between a supercell tornado and a non-supercell tornado?
1)They form when the water vapor in the air has reached it's dew point. The surface that the clouds are formed on are dust/salt particles (the arosols) in the atmosphere.
2)A supercell is stronger and a non-supercell can cause damage but is weaker.
1)What is global winds and jet stream?
2)What is the Enhanced Fujita Scale used for?
1)Winds that loop across the planet, blow at the same speed and direction, usually east to west, high in the troposphere, so they are not felt on the ground usually very strong (up to 250 mph).
2)It is used to measure the wind speed based on the amount of damage that a tornado has caused. (this scale categorizes the storm 1-5) (5 contains the most powerful winds and causes the most damage).
1)What is lightning?
2)What is a tornado and how is it formed?
1)It is bolts of electricity.Warm air quickly rises, causing clouds to be electrically charged. The heat flows between the charged parts of the cloud causing electricity flashes called lightning.
2)It is a swirling vortex of wind, and it is formed when an updraft creates a funnel cloud that reaches the ground. It stays in a small area and usually doesen't last more than 10 minutes.
1)True or false: There is less pressure at the surface than there is at the top.
2)What is the Saffir-Simpson hurricane wind scale used for?
1)False.
2)It is used to measure hurricanes based on wind speed (predicts the strength of the storm using a measurement of categories 1-5) (five being the most catastrophic).
1)How big is hail?
2)What is the eye of the hurricane?
1)About 5 mm in diameter or larger.
2)It is the center and the calmest part of the hurricane.
1)What is weather?
2)How are hurricanes formed?
1)It is the state of the atmosphere at a specific time and place regarding: air pressure wind, temperature, and humidity.
2)They are formed over warm water when wind blows in low pressure areas (that contain warm and moist air) in the northern hemisphere. These winds are powerful and due to Earth's rotation, swirl in a counterclockwise direction forming a cyclone.
1)What is local winds?
2)What is a cyclone?
1)The wind that we feel on Earth's surface or ground. This wind blows over small areas. It can change speed and direction frequently. The Earth heats the air above it which causes the air to rise.
2)A large swirling storm.
1)What is thunder?
2)What is sea breeze and land breeze?
1)It's the sound of the warm air expanding due to the heat of lightning, and then quickly contracting when it cools.
2)Sea breeze:When cool air from the sea moves towards the land (shore), Land breeze: When cool air from the land (shore) moves towards the sea.