Unit 2 lesson 11 weather review

Answer 1

In this lesson, we will review some key concepts about weather.

1. What is weather?
Weather refers to the day-to-day conditions of the atmosphere in a particular area, including temperature, precipitation, humidity, wind speed, and atmospheric pressure.

2. How is weather different from climate?
While weather refers to short-term changes in the atmosphere, climate describes long-term patterns and trends of weather conditions in a specific region. Climate takes into account averages and variations in temperature, precipitation, and other atmospheric factors over a period of time.

3. What is temperature?
Temperature is a measure of the average kinetic energy of molecules in a substance, such as air. It is commonly measured in degrees Celsius (°C) or Fahrenheit (°F) using thermometers. Temperature affects our daily lives and is one of the most important elements of weather.

4. What factors influence temperature?
Some factors that influence temperature include latitude, altitude, distance from the ocean or large bodies of water, cloud cover, and local geography. Locations closer to the equator generally have warmer temperatures, while higher altitudes and locations farther from water bodies tend to be cooler.

5. What is precipitation?
Precipitation refers to any form of water that falls from the atmosphere to the Earth's surface, such as rain, snow, sleet, or hail. It is a crucial component of the Earth's water cycle and is affected by factors such as temperature, air pressure, and humidity.

6. What is humidity?
Humidity is the amount of moisture or water vapor present in the air. It can influence weather conditions, such as the likelihood of precipitation, evaporation rates, and the comfort level of individuals. Humidity is typically measured using a hygrometer.

7. What is wind?
Wind is the movement of air from an area of higher pressure to an area of lower pressure. It is caused by differences in atmospheric pressure created by temperature variations and the Earth's rotation. Winds can range from gentle breezes to powerful storms.

8. How is wind speed measured?
Wind speed is commonly measured using an instrument called an anemometer. It is usually expressed in miles per hour (mph), kilometers per hour (km/h), or knots. Wind speed affects weather conditions and is an important factor in determining wind chill and heat index.

9. How is atmospheric pressure measured?
Atmospheric pressure is the force exerted by the weight of the air above a given point. It is commonly measured using a barometer. The unit of measurement for atmospheric pressure is typically millibars (mb) or inches of mercury (inHg).

10. How are weather forecasts made?
Weather forecasts are made using weather data collected from various sources, such as weather satellites, weather stations, and weather balloons. Meteorologists analyze this data to make predictions about future weather conditions. Computer models and historical weather patterns are also used to enhance accuracy in weather forecasting.