How does the weather affect your life What

How does the weather affect your life? What is the weather like today? Is the weather like this every day in Sanlucar? What is the climate like in Spain?

Observation and Recording of the weather. L/O: To know what the difference between weather and the climate is To know the weathers main components To know how the weather can be measured accurately Homework Due: 7 mark exam coral reef question

What is the difference between weather and climate? Weather: The short term atmospheric changes day to day Climate: The average weather conditions over a period of time Many places will have the same kind of weather season to season and therefore will have the same kind of climate. But in some places the climate is changing e. g. Artic is getting warmer Morocco is getting drier

The weather components: (what we look at to know the weather) You have seven different things that make up the weather: 7. 1. Temperature 2. Precipitation 3. Wind speed 4. Wind direction 5. Cloud cover (how many clouds) 6. Air pressure Humidity (how much water there is in the air)

WEATHER COMPONENT S Description Precipitation e. g. hail, snow, rain etc. With what is it measured? Labelled drawing of instrument Rain gauge Metal or plastic funnel How is it recorded? Millimeters (mm) Fill in your own table using page 234 to help you Cloud cover How many clouds there are in the sky A piece of paper divided into 8 parts A decision is made about how much cloud cover there is out of 8. Oktas

WEATHER COMPONENT Description With what is it measured? Labelled drawing of instrument How is it recorded? Precipitation e. g. hail, snow, rain etc. Rain gauge Metal or plastic funnel Millimeters (mm) Cloud cover See page 235 How many clouds there are in the sky A piece of paper divided into 8 parts A decision is made about how much cloud cover there is out of 8. Oktas

The 4 thermometers inside this screen are: 1 Maximum thermometer - this measures the highest temperature of the day 2 Minimum thermometer - this measures the lowest temperature of the day. We can work out the average temperature for the day by adding these 2 readings and dividing by two. i. e. Average Daily temperature = Maximum Temperature + Minimum Temperature divided by 2 To work out the average monthly temperature, add up the average temperature for each day in the month and divide by the number of days in the month. 3 Dry bulb thermometer - this measures air temperature. 4 Wet bulb thermometer - this shows us the amount of water vapour in the atmosphere.

Rain falling on the funnel is collected in a bottle and this is measured each day.

The wind catches the three cups and as they spin round the wind speed is shown on a dial. We can easily estimate the wind speed by looking at the effect that the wind has on objects around us. This is given as a number between 0 and 12 on the Beaufort Scale.

We measure wind direction with a wind vane (see diagram). Wind direction is the compass point from which the wind is coming eg south, south west, west etc. The unit of measurement for wind direction is therefore compass direction.

The earth is surrounded by a layer of gas known as the atmosphere. The weight of this air puts a pressure on the earth's surface (the same way as your weight puts pressure on a set of scales). We measure air pressure in millibars (mb) with a barometer.

The Stevenson Screen

The Stevenson Screen Page 86 A Stevenson screen is used to protect weather instruments from giving uneven results. It consists of: - A square box on a stand of 110 cm above the ground so it does not come into contact with the ground - The box had slatted sides - The roof is made of double boards - It is painted white to reflect the sun’s rays - In a place with no trees or buildings to make sure the readings are accurate Task: Draw and label your own Stevenson screen Then: explain why it: a) Is painted white b) Has slatted sides Then: Explain why preventing it from coming into contact with the ground or being by trees or buildings makes the readings inaccurate.

Homework: Cloud worksheet – Due Tuesday 25 th November