How to track hurricanes(source 6)• Aircrafts (planes)• Satellites- take pictures of earth from space• Weather Radar-collects cloud formation information• Buoys and floats• Computer forecast models- use weather information
When and Where• Hurricane season is June 1st through November 30th (4)• Hurricanes form in tropical areas where the air and water is warm.• hurricanes are formed in the North Atlantic Ocean (2)• They form where water is 80 degrees or more. (4)• Hurricanes build up as they go through the ocean(4)• There are 5-6 hurricanes per year usually (5)
Affects of Hurricanes• They can unleash up to 2.4 trillion gallons of rain water(5)• People can lose homes and property• Trees can be knocked down and die• Animals can be washed away from their habitats• Hurricanes can cause costal beach erosion from the wave currents. (1)• Hurricane wind and rain can destroy buildings• Hurricane winds can cause tornadoes (4)
How are Hurricanes Formed?• Hurricanes gather energy and heat through contact with warm ocean water . (1)• Evaporation speeds up the process of a hurricane (1)• Hurricanes go through four stages-(7)• Tropical disturbance• Tropical depression• Tropical storm• And finally a hurricane• Not all storms will reach the forces of a hurricane.
When Hurricanes hit land…• When hurricanes hit land, they lose much power (1)• Hurricanes move in a counter clockwise rotation (1)• Hurricanes have an “eye”• The eye of the hurricane is in the middle and is the calmest part.(1)• Hurricanes have categories• The categories of a hurricane are determined by how strong the hurricane is• 1 being the weakest and 5 being the strongest.• Wind of hurricanes curve because of earth rotating on it’s axis, which is called the Coriolis effect. (7)• The faster the wind blows, the more the wind curves (7)
What Can We Expect in the Future?• The number of category of 4 and 5 have been increasing since the 1980s (7)• Scientists think global warming has affected the number of category 4 and 5 hurricanes (7)• Some scientists think the number of 4 and 5 hurricanes are increasing because of the technology advances. (7)
History of the HurricaneThe word hurricane comes from “Huracan” a Taino and Carib god of evil, or the Mayan storm god, “Hunraken” (5)The first possible recording of an Atlantic cyclone was found by Mayan Hieroglyphics (5)
Bibliography1. “Hurricanes” Author N/A. WeatherWiz Kids. www.weatherwizkids.com2. “Hurricanes” Web Weather for kids. //eo.ucar.edu3. “Texas Hurricane History” USA Today. 2011. www.usatoday.com4. “How Hurricanes Work” Marshall Blain Et Al. //science.howstuffworks.com5. “Huracan” Rochelle Oblack. About. //weather.about.com7. “Predicting Hurricanes:Times Have Changed” 2007 //celebrating200years.noaa.gov8. Hurricanes. By Alvin and Virginia Silverstein and Laura Silverstein Nunn. Enslow Publishers, NJ. 2010
ExperimentProblem: Which kind of soil is best for hurricanes?Soils Tested: clay, gravel, sand.
Materials• Bucket/container• Shower water• clay• Gravel• sand• Measuring cup• camera
Procedures• Place a (measured) type of soil into the container.• Place the container of the 1st soil into the shower.• Turn on the shower for 60 sec.• After 60 sec., measure how much soil is still in the container after the “hurricane.”• Subtract that from the amount that was first in the container.• Repeat for each type of soil• Repeat for each 3 trials.
VariablesControlled:• Amount of soil in container• Amount of time the soil is in the “hurricane”• The place where the bucket of soil isIndependent: The type of soilDependent: How it is affected by a “hurricane” (how much soil that escapes the container during the hurricane.)
HypothesisIf I put sand, clay, and gravel through a hurricane, then I think that the gravel will uphold the hurricane the best, because gravel is the heaviest out of the three soil types. The gravel also has bigger pore space (permeability), so it can hold more water without being washed out of its container . Also, when minor everyday wind hits gravel, the gravel is usually heavy enough that it doesn’t move as easily as the other types. I think that the sand will be the worst at upholding the hurricane, because of the very small pore space that cant hold much water without the sand and water over flowing. Also, for example, when you go to the beach, when the waves come up on the sand, the dry sand gets washed away. When you simply blow sand on the beach, it travels very easily.
Conclusion I accept my hypothesis. The gravel upheld thehurricane the best, and the sand was the worst atupholding the hurricane. If I were to do thisexperiment again, I would test soils that weren’tsolvents, because the sand is a solvent. Since it isa solvent, some of it dissolved in the water, so Ihad to drain the water that had dissolved sand init. Also if I were to do this experiment again, Iwould chose a smaller container, so that moresoil could escape from the container during thehurricane.