3. TEKS §112.7. Science, Grade 5. (4) Science is a way of learning about the natural world. Students should know how science has built a vast body of changing and increasing knowledge described by physical, mathematical, and conceptual models, and also should know that science may not answer all questions. (12) Science concepts. The student knows that the natural world includes earth materials and objects in the sky. The student is expected to: (A) interpret how land forms are the result of a combination of constructive and destructive forces such as deposition of sediment and weathering; (5) Science concepts. The student knows that a system is a collection of cycles, structures, and processes that interact. The student is expected to: (A) describe some cycles, structures, and processes that are found in a simple system; and (B) describe some interactions that occur in a simple system.

4. A. Before thunderstorms develop, a change in wind direction and an increase in wind speed with increasing height creates an invisible, horizontal spinning effect in the lower atmosphere. B. Rising air within the thunderstorm updraft tilts the rotating air from horizontal to vertical. C. An area of rotation, 2- 6 miles wide, now extends through much of the storm. Most strong and violent tornadoes form within this area of strong rotation. How Do Tornadoes Form?

5. Fujita Pearson Tornado Scale F-0 40-72 mph, chimney damage, tree branches broken F-1 73-112 mph, mobile homes pushed off foundation or overturned F-2 113-157 mph, considerable damage, mobile homes demolished, trees uprooted F-3 158-205 mph, roofs and walls torn down, trains overturned, cars thrown F-4 207-260 mph, well-constructed walls leveled F-5 261-318 mph, homes lifted off foundation and carried considerable distances, autos thrown as far as 100 meters

6. 1.The tornado is moving at 30 miles per hour. It is headed toward Femaville, which is 15 miles away. How long will it take for the tornado to hit Femaville? 8 hours 8 minutes 30 minutes 120 minutes 2.The city hall building of Femaville has a large basement. There is a tornado approaching and many people have sought shelter in the basement. The people in the basement are: 15 staff members from city hall, the mayor and his secretary, 2 from the flower shop across the street, 4 from the diner next door, 4 members of the Smitty family, 3 members of the Gordon family and one policeman. How many people are in the basement? 13 people 29 people 30 people 31 people

7. 3. The policeman leaves to help others outside. Two people walking by, a delivery man and three members of the Lee family have now come to the basement. Now how many are there? 37 people 36 people 63 people 33 people 4. The tornado hit Femaville and no one was injured, but it caused some damage to buildings. This was the damage: $2,346 to the Gordon family house; $11,490 to the diner; $3,421 to the flower shop and $874 to City Hall. How much total damage was there in Femaville? $181.41 $17,267 $18,131 $15,795 5. There was also damage to the mayor's car, of $973. Now how much damage was there? $19,104 $14,119 $191.14 $91,411

8. Twister In A Jar The purpose of this experiment is to observe how a vortex forms. 8 oz. jar with lid Water Vinegar Clear liquid dish soap A pinch of glitter 1. Fill the jar 3/4 full of water. 2. Put in one teaspoon of vinegar and one teaspoon of dish soap. 3. Sprinkle in a small amount of glitter. 4. Close the lid and twist the jar to see a vortex like a tornado form. As you twist the jar, the water inside up against the glass is pulled along due to its friction again the glass walls. The fluid toward the inside takes longer to get moving. But eventually both the glass jar and the fluid are spinning as you rotate the bottle. When you stop rotating the jar, the fluid inside keeps spinning. A mini twister can be seen for just a few seconds when the outer fluid slows down and the inner fluids continue to spin rapidly. Try it again!

9. Works Cited http://www.fema.gov/kids/tornado.htm http://www.nssl.noaa.gov/edu/safety/tornad oguide.html http://www.nssl.noaa.gov/edu/safety/tornad oguide.html http://www.tea.state.tx.us/rules/tac/chapter1 12/ch112a.html http://www.tea.state.tx.us/rules/tac/chapter1 12/ch112a.html