Catalyst: Mouths are quiet .

1. Catalyst: Mouths are quiet. Get your folder out and begin the quickreview section of your notes. Raise your hand if you need something.

2. Quick Review In giraffes, there is a gene that controls tongue color. The dominant tongue color is black while the recessive tongue color is pink. A homozygous dominant giraffe is crossed with a homozygous recessive giraffe. Use this information to answer the following questions. 1. Show the abbreviated genotypes for the cross: TTx tt 2. Setup the tool needed to correctly predict the trait in offspring

3. Quick Review In giraffes, there is a gene that controls tongue color. The dominant tongue color is black while the recessive tongue color is pink. 3. What is the percentage chance that offspring will have a black tongue? 100% 4. What is the percentage chance that offspring will have a pink tongue? 0% 5. What is the percentage chance that offspring will be a carrier for the pink tongue trait? 100%

4. Weather Lesson 8.4 – Weather Data and air Pressure

5. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) 1. Scientists that study the weather, called meteorologists, must collect data(information) to make predictions about the weather.

6. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) Name: Precipitation Description: How much water falls to Earth. Measurement Tool: Raingauge

7. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) Name: Wind Description: Whereand howfastair molecules are moving Measurement Tool: Anemometer(speed); windvane(direction)

8. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) Name: Temperature Description: How quicklyairmoleculesare moving. Measurement Tool: Thermometer

9. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) Name: Humidity Description: How much watervaporis in the air. Measurement Tool: Hygrometeror Psychrometer

10. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) Name: Air pressure Description: How much the atmosphereis pushingdownon Earth. Measurement Tool: Barometer

11. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) 3. Air Pressure is often also called barometricpressure. a. Air pressure is differentaround the world and changes. It varies mostly because of differences in the amountof sunlightan area receives.

12. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) b. If an area receives lotsof sunlight, the air is warmerand lessdense which pushes down on Earth lessgiving a lowerair pressure. c. If an area receives lesssunlight, the air is coolerand moredense which pushes down on Earth moregiving a higherair pressure.

13. I can list important weather data and how it is gathered. I can predict weather based on barometric pressure. (4c) 4. Changes in air pressure help us to predictchanges in weather. a. If air pressure drops, this means a lowpressureweather system is moving in. This usually brings cloudsand rainyor snowyweather. b. If air pressure rises, this means a highpressureweather system is moving in. This usually brings sunny, fairweather.

14. Guided Practice

15. Guided Practice 1. A student is using a tool called an anemometer. What is she measuring? Wind speed 2. In order to predict weather, a meteorologist needs to determine air pressure. What is he actually measuring, and what tool would he use? He is measuring how much the atmosphere is pushing down on the Earth. He would use a barometer. 3. Seattle, Washington gets little sunlight. Predict the air pressure in this location. Air pressure will be high because the air is cooler and more dense which means it presses on Earth harder.

16. Guided Practice 4. How is the air pressure changing from Wednesday to Thursday? The air pressure is increasing from Wednesday to Thursday. 5. What prediction can you make about the weather on Thursday from this change in air pressure? The weather will be sunny with few clouds and no chance of rain. Wednesday Thursday

17. I-N-D-E-P-E-N-D-E-N-T Do you know what that means?

18. Exit Ticket (5 questions)

19. 1. A student is measuring the amount of water vapor in the air. Which of these devices is she using? • Thermometer • Anemometer • Psychrometer • Barometer

20. 2. Which of these describes the device shown in the picture? • It is a psychrometer used to measure humidity. • It is an anemometer used to measure wind. • It is a thermometer used to measure temperature. • It is a barometer used to measure air pressure.

21. 3. Which of these describes air pressure? • How quickly air molecules are moving. Measured with a psychrometer. • How much Earth’s atmosphere pushes on the surface. Measured with a psychrometer. • How quickly air molecules are moving. Measured with a barometer. • How much Earth’s atmosphere pushes on the surface. Measured with a barometer.

22. 4. The passage below explains why a certain area has low air pressure but several words have been left out. Put the terms in the correct order to make the passage true. You may use a word more than one time. An area of low pressure receives ____ sunlight. This causes the air there to be dense causing the air to push on Earth’s surface with force. • More • Less • Some

23. 5. A student measures the air pressure for three days. Her data is shown in the table below. Which of these explains how the weather will change? • Clear with sunshine and no rain. • Partly cloudy with no rain. • Heavy clouds with a 100% chance of rain. • Sunshine with small thunderstorms through the day.