Weather

Question 1

What is the layer of the atmosphere with the lowest temperature?

Answer 1

mesosphere

Question 2

What is the layer of the atmosphere that the jet stream flows in?

Answer 2

troposphere

Question 3

The aurora borealis occurs because of the makeup of this layer of the atmosphere.

Answer 3

magnetosphere

Question 4

The highest temperatures are found in this layer of the atmosphere.

Answer 4

thermosphere

Question 5

Jet planes often climb above the clouds to fly in the lower part of this layer of the atmosphere.

Answer 5

stratosphere

Question 6

Radio waves bounce off this layer of the atmosphere.

Answer 6

ionosphere

Question 7

Our satellites orbit the earth in this layer of the atmosphere.

Answer 7

exosphere

Question 8

Meteroids often burn up when passing through this layer of the atmosphere.

Answer 8

mesosphere

Question 9

This layer contains the ozone layer that protects us.

Answer 9

stratosphere

Question 10

Our weather occurs in this layer of the atmosphere.

Answer 10

troposhere

Question 11

What is the formula for ozone and why is it so important?

Answer 11

O3-it absorbs some of the UV radiation and prevents it from reaching earth.

Question 12

Why couldn’t Aristotle get water to rise more than 10 meters in a well?

Answer 12

It was due to the weight of the air which was unable to push the water any higher

Question 13

Describe Toricelli’s barometer and how it worked.

Answer 13

He inverted a tube of mercury upside down in a dish of mercury-as air pushed on the mercury in the dish the level inside the tube would rise or fall depending on the air pressure.

Question 14

Describe the type of air that will cause the barometer reading to rise.

Answer 14

cold, dry, heavy, sinking air

Question 15

Describe the type of air that will cause the barometer to fall.

Answer 15

warm moist, lightweight air

Question 16

What does a barometer tell us? How can a barometer also be used as an altimeter?

Answer 16

It tells us the air pressure. Since pressure goes down with increasing altitude the barometer reading can help you determine how high you are in the atmosphere

Question 17

Describe properties of air that cause a high pressure system and tell the type of weather you would expect.

Answer 17

Cool, dry, sinking air-no clouds, good weather

Question 18

Describe properties of air that cause a low pressure system and tell the type of weather you would expect.

Answer 18

Warm, moist, rising air-clouds and precipitation

Question 19

Is air pressure higher or lower on top of a mountain? Tell why.

Answer 19

Lower-when you are up high there is less air above you and molecules of air are farther apart so the pressure is lower.

Question 20

Is air pressure higher or lower in a deep valley? Tell why.

Answer 20

The lower you are, the more weight of air there is above you making the pressure greater

Question 21

We can’t see air. What must we prove in order to say that air is matter?

Answer 21

We must prove it has mass and takes up space.

all matter has mass
air has mass
therefore air is matter

think of mini labs

Question 22

Draw the symbol for a high pressure system and show how the air moves around it.

Answer 22

H

Air moves out clockwise

Question 23

Draw the symbol for a low pressure system and show how the air moves around it.

Answer 23

L

Air moves inward, counterclockwise

Question 24

Define what an isobar is…

Answer 24

Lines connecting areas of equal barometric pressure

Question 25

Define isotherms…

Answer 25

Lines connecting equal temperatures on a weather map

Question 26

Explain which type of isoline is most useful in forcasting the weather.

Answer 26

Isobars- because they show the type of weather and how strong the pressure change will be.

Question 27

What does it mean when isobars around a low pressure system are close together?

Answer 27

The closer the lines the greater the pressure change and the stronger the winds.

Question 28

How does moisture in the air affect air pressure?

Answer 28

It makes air lighter weight and have less pressure.

Question 29

How are winds named?

Answer 29

by the direction from which they come.

Question 30

Explain the result of the experiment in which a jar was placed upside down over a lit candle. How is air pressure involved?

Answer 30

After the candle goes out-air in the jar cools, it has less pressure and outside water is pushed in.

Question 31

Explain what happens in the experiment in which a wooden slat is placed uder an open sheetr of newspaper and hit with a hammer. How is air pressure involved?

Answer 31

Air pressure on the newspaper holds the stick down so that it can be easily broken.

Question 32

Explain what happens when air is blown into a straw placed horizontally near the top of a vertical straw in a cup of water? How is air pressure involved?

Answer 32

An area of low pressure is created in the top of the straw and water from the glass is pushed in to take its place and sprays out the top of the straw

Question 33

Explain how water stays in an upside down cup that has paper under the opening? How is air pressure involved?

Answer 33

The air pressure pushing up on the paper from below holds the water in the glass

Question 34

Explain what happens when you blow across a loop of paper shaped like an airplanbe wing. How is air pressure involved?

Answer 34

Pressure drops across the top and rise below so it moves up, creating lift

Question 35

Explain what happens when you blow under an index card that is folded into a table shape. How is air pressure involved?

Answer 35

Pressure on top is greater, because you remove air underneath so it curves downward.

Question 36

Describe three types of heat transfer and give examples of each.

Answer 36

Conduction-touch something hot
Convection-warm rises, cold falls
Radiation-heat transfer through space