Weather

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This booklet describes the difference between climate and weather and provides experiments which look at what weather is, and why, how to observe it and how to apply these observations.

Contents:
Part 1: lntroduction

Part 2: Practicals
Observations of the weather:
1. What is precipitation?
2. What is snow?
3. Where is frost found?
4. How far can you see?
5. Looking at clouds
6. Making cloud pictures
7. Plotting a thunderstorm
8. Plotting soil temperatures

Measurements of the weather
9. Measuring the pressure of the atmosphere - 1
10. Measuring the pressure of the atmosphere - 2
11. Measuring the pressure of the atmosphere - 3
12. Making a wind vane
13. Measuring the wind strength - 1
14. Measuring the wind strength - 2
15. Measuring the wind strength - 3
16. Measuring the humidity of the air - 1
17. Measuring humidity - 2
18. Finding the 'dew point' of the air
19. Measuring rainfall
20. Measuring snowfall
21. Investigating air temperatures
22. Using a 'minimax' thermometer
23. The temperature under glass

The weather station
Weather forecasts
24. What do people think of weather forecasts?
25. How accurate are weather forecasts?
26. A daily synoptic chart

Explaining weather
27. 'Is air a body?'
28. Does air have weight?
29. Does air have a pressure?
30. Using air pressure
31. Hot air expands
32. Hot air rises
33. What happens to the temperature of expanding air?
34. How does evaporation affect the temperature of the surroundings?
35. Investigating evaporation and condensation
36. Does air contain water?
37. What is 'steam'?
38. A model of the water cycle
39. A model of saturated and supersaturated air
40. What is frost?
41. What is the structure of a hailstone?

Ideas for further work
42. Make a hot air balloon
43. Make a solar still
44. Investigate rate of cooling
45. Listening to thunder
46. Make a Stevenson screen
47. Cloud movies
48. The shipping forecast
49. The lunar phases

Part 3: Background
The water cycle
Cloud types
The thunderstorm
The Atlantic depression
The weather forecast areas
Suggestions for background reading

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Please be aware that resources have been published on the website in the form that they were originally supplied. This means that procedures reflect general practice and standards applicable at the time resources were produced and cannot be assumed to be acceptable today. Website users are fully responsible for ensuring that any activity, including practical work, which they carry out is in accordance with current regulations related to health and safety and that an appropriate risk assessment has been carried out.

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