Unit D: Patterns on Earth and in Space
Chapter 1: Weather Conditions
Chapter 1 Introduction
Everyone talks about the weather, but weather forecasters get paid to talk about it. Many people depend on weather forecasts to plan their day. Sometimes forecasts of severe weather can even save lives.
Click on the button below to watch and interact with a video about weather. |
Chapter 1, Lesson 1: What Makes Up Earth's Atmosphere?
Summary
The thin blanket of air that surrounds Earth is called the atmosphere. Earth's atmosphere is divided into four layers based on changes in temperature. The layers, starting with the one closest to the Earth are the troposphere, stratosphere, mesosphere and thermosphere. Click on the button below to watch and interact with a video about atmosphere . |
Chapter 1, Lesson 2: How Do Air Masses Affect Weather?
Summary
The sun provides the energy to make weather. The atmosphere traps heat near Earth's surface much as a greenhouse does. Air masses from over continents and oceans. When two air masses meet, they form a front. Fronts are the area where most weather happens. Click on the button below to watch and interact with a video about air masses. |
Chapter 1, Lesson 3: How is Weather Predicted?
Summary
Meteorologists are scientists who study and measure weather conditions. These conditions include air preasure, air temperature, humidity, and wind speed and direction. By measuring and studying weather conditions, meteorologists are able to predict the weather. Click on the button below to watch and interact with a video about predicting weather. |
For Review
Click on the picture below for more on weather.
Click on the picture below for more on weather.