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Investigating Weather

Science, Grade 5

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Hygrometer A hygrometer is used to measure the amount of water vapor in the air. Rain Gauge A rain gauge is used to measure how much water has fallen. © Copyright NewPath Learning. All Rights Reserved. 94-4362 Visit www.newpathlearning.com for Online Learning Resources. Investigating Weather In order to make predictions, meteorologists use instruments to record information about the weather. These are some of the instruments they use. Thermometer A thermometer is used to measure air temperature. Anemometer An anemometer measures wind speed in either kilometres per hour or miles per hour. Wind Vane A wind vane shows the direction in which the wind is blowing. Barometer A barometer is used to measure air pressure–the weight of the air pushing down on Earth’s surface. aneroid barometer mercury barometer RAIN FAIR 29 30 31 28 INS Hg 1000 1010 10 20 10 30 10 40 105 0 9 70 98 0 990 9 6 0 95 0 940 930 Mb s aneroid barometer 20 30 40 50 60 70 80 90 10 0 % Hygrometer N S E W 20 MPH mercury atmospheric pressure vacuum 760 mm (29.92 in.)

Investigating Weather © Copyright NewPath Learning. All Rights Reserved. 94-4362 Visit www.newpathlearning.com for Online Learning Resources. Pause & Review Study the weather instruments from this weather station and record the data. Then write a weather report. Weather Report - Use the data to describe the weather. ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Dewpoint Temperatures (ºC) Dry-Bulb Temperature reading (ºC) -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -14 -12 -10 -7 -5 -3 -1 1 4 6 8 10 12 14 16 19 21 23 25 27 29 -22 -18 -14 -12 -8 -6 -3 -1 1 3 6 8 11 13 15 17 19 21 23 25 27 -29 -22 -17 -13 -9 -6 -4 -1 1 4 6 9 11 13 15 17 20 22 24 26 -29 -20 -15 -11 -7 -4 -2 1 4 6 9 11 14 16 18 20 22 24 -24 -17 -11 -7 -5 -2 1 4 7 9 12 14 16 18 21 23 -19 -13 -9 -5 -2 1 4 7 10 12 14 17 19 21 -21 -14 -9 -5 -2 1 4 7 10 12 15 17 19 -14 -9 -5 -1 2 4 8 10 13 16 18 -28 -16 -10 -6 -2 2 5 8 11 14 16 -17 -10 -5 -2 3 6 9 11 14 Di erence between Wet-Bulb and Dry-Bulb Temperature readings (ºC) 01 23 45 67 89 10 RAIN FA IR 29 30 31 28 INS Hg 1000 1010 10 20 10 30 10 40 105 0 9 70 98 0 99 0 9 6 0 95 0 940 930 Mb s MPH -40 -40 -30 -20 -10 0 10 20 30 40 50 -20 0 20 40 60 80 100 120 60 140 N S E W Dewpoint Temperatures (ºC) Dry-Bulb Temperature reading (ºC) -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 -14 -12 -10 -7 -5 -3 -1 1 4 6 8 10 12 14 16 19 21 23 25 27 29 -22 -18 -14 -12 -8 -6 -3 -1 1 3 6 8 11 13 15 17 19 21 23 25 27 -29 -22 -17 -13 -9 -6 -4 -1 1 4 6 9 11 13 15 17 20 22 24 26 -29 -20 -15 -11 -7 -4 -2 1 4 6 9 11 14 16 18 20 22 24 -24 -17 -11 -7 -5 -2 1 4 7 9 12 14 16 18 21 23 -19 -13 -9 -5 -2 1 4 7 10 12 14 17 19 21 -21 -14 -9 -5 -2 1 4 7 10 12 15 17 19 -14 -9 -5 -1 2 4 8 10 13 16 18 -28 -16 -10 -6 -2 2 5 8 11 14 16 -17 -10 -5 -2 3 6 9 11 14 Di erence between Wet-Bulb and Dry-Bulb Temperature readings (ºC) 01 23 45 67 89 10 RAI N FA IR 29 30 31 28 INS Hg 1000 1010 10 20 10 30 10 40 105 0 9 70 98 0 99 0 9 6 0 95 0 940 930 Mb s N S E W MPH 10 MPH -40 -40 -30 -20 -10 0 10 20 30 40 50 -20 0 20 40 60 80 100 120 60 140 -40 -40 -30 -20 -10 0 10 20 30 40 50 -20 0 20 40 60 80 100 120 60 140 N S E W Record your measurements. temperature wind speed wind direction precipitation sky conditions

Investigating Weather

Science, Grade 5

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