By Sophie

Blizzards

What are Blizzards?• Blizzards start when polar and warm air meet, the polar pushes the warm air up

and it stays in the atmosphere part where water vapor forms clouds(source 4)• They are big winds at atleast 35 mph and have snow pouring down(source 4)• They can lock you in our house because of snow in front of your house

door(source 3)• They usually occur often in the North(source 4)• They can use erosion which can be hard to tell if snow is coming from the ground

or sky(source 4)• They can also kill people by their mighty force and lock us in houses(source 4)• In some blizzards ,winds can sound like trains(source 3)• They can knock down trees, power lines, and small houses(source 2)• They can leave lots of inches of snow( source 1)• They happen usually in a pattern in winter(the season of it)(source 1)• Blizzards keep progressing when they start then they die down(source 1)

The affects

• Blizzards affect humans by killing them and bringing down their houses

• Blizzards also affect animals by either killing or locking them in holes

• Blizzards affect earth by creating erosion and washing away some materials(source

• Blizzards can also affect earth by creating a avalanche(source

In the future

• In the future scientists think blizzards will hit the north, more specifically the northwest.(Washington, Idaho, Oregon, Montana)(source 2)

• they think this because that is where blizzards occur most(source 2)

What are some types of blizzards?

• There are ground blizzards, whiteouts, regular blizzards, and different categorized blizzards that are categorized by the numbers 1,2,3,and 4 ( Source 2)

• The numbers say if they are major, minor, and in the middle blizards(source 2)

• A ground blizzard has no precipatation and is when snow and ice is blown from the ground(source 2)

What is some Blizzards that are magor?

• There was the 1972 Iran blizzard that was one of the deadliest in history, it caused about 4000 deaths(source 4)

• Once in NY there was a blizzard suddenly on a warm day and by the end of it about 400 people had died(source 4)

How do Scientists Predict them?

• One way they predict them is the when they most happen, in the winter(the blizzard season)(source 4)

• They also can predict where the winds will go like when they travel in the west winds they head east(source 4)

• They can also predict them by their devices that have warnings(source 4)

Hypothesis

If I mix hot and cold air then I think the air will just stay in the middle of the two jars because my research said that thyat hot air rises and cold air sinks so if they are both in the same space they will go in the middle. If I mix hot and hot air then I think the hot air will rise and stay at the top because my research shows that hot air rises and since they are both hot air they will rise. If I mix cold and cold air together then I think that the air will sink because my research shows that cold air sinks and hot rises.

Materials

• 2 quart sized jars• some matches• A camera• Ice pack• Hot water in pan

Experiment variables

• Controlled- how much smoke Independent-changing warm and cold air

• Dependent-the air

Experiment ProcedureFirst I will gather materialsSecond I will put smoke in one jarThird I will quickly stack the other jar on top of it Fourth I will put the pan full of hot water under the low jar Fifth I will put a ice pack on top of the other jar I will take pictures throughout the experimentI will then repeat these steps and do them with only a hot water of pan and no ice then repeat with only ice

Experiment results1- What happens when cold and hot air mix?

Trial1- the airs swirled because the hot pushes up and the cold pushes down so they go in the middle and swirlTrial2- air swirls2-What happens when warm and warm air mix?

Trial1- they go to the top because hot air push upTrial2- they went to top3- What happens when cold and cold air mixes?Trial1- went to bottom because they push each other downTrial2- went to bottom

Conclusion

• My hypothesis on hot and cold air was right and wrong, it was right that the air would stay in the middle but wrong that the air would just stay it actually swirled.

• My hypothesis was right on hot and hot air the air did go to the top and stay.

• My hypothesis was right for cold and cold air the air did stay in the bottom.

If I were able to change something in the experiment I would change the way the pictures looked, it is hard to see what it was a picture about. I would also try harder to put an equal amount of smoke in both jars.

I think the experiment went well I did what I wanted to accomplish.

Graph of experiment

This is a graph of how much each questions results swirled. 1= warm and cold air together. 2=warm and warm air.3= cold and cold together

Blizzard pics

Bibliography

• Source 1- my brain/me• Source 2-Blizzards.ThinkQuest.1998.March 6,2012.

http://www.thinkquest.org/pls/html/think.site?p_site_id=3805

• Source 3-”11 facts about Blizzards.New York. March 6,2012http://www.dosomethings.org/tipsandtools/11-facts-about-blizzards

• Source 4- Burby, Liza.Blizzards. 1999.March 8,2012.