Unit Summary

Use the following table to review what you have learned in this unit.


Questions

Summary


  1. What are the elements of weather?

      2. 1.1 Why do temperature differences cause air movement?

      1.2 What causes rain, hail, sleet, and snow?

      1.3 How can weather be measured?

      1.4 What weather clues do the clouds and the Sun give us?

      1.5 How can we predict and prepare ourselves for weather?

  • Temperature differences caused by the Sun adding energy to Earth result in air movement.
  • Hot air rises, and cool air sinks.
  • Condensing water vapour in atmosphere forms clouds.
  • Clouds can produce various kinds of precipitation.
  • Various technologies and devices are used to measure the elements of weather.
  • Various types of clouds provide clues for predicting the weather.
  • Uneven heating of Earth by the Sun during the year is responsible for the seasons.
  • Various substances and surfaces have various abilities to absorb and hold heat.
  • Weather can be predicted by tracking high and low pressures systems and the jet stream.
  • Preparing for weather means choosing suitable fabrics and clothing to wear.

  1. How is climate different than weather?

      2. 2.1 How does climate vary throughout the world?

      2.2 How are human actions linked to climate change?

  • Weather is the momentary conditions of the atmosphere.
  • Climate is the conditions of the atmosphere during the long term.
  • Climographs are good way to show average climate for a location.
  • The natural greenhouse effect warms the atmosphere by trapping greenhouse gases.
  • Man produces greenhouse gases by burning fossil fuels.
  • Man is enhancing the greenhouse effect on Earth by producing greenhouse gases.
  • Rising greenhouse gases has been linked to global warming and climate change.