![]() ![]() Weather data from many places can be recorded on synoptic charts.Ĭlimate is a summary of average weather data over at least one year. temperature, humidity, wind, precipitation and sunshine. It is a description of the conditions necessary for human comfort and survival, i.e. Weather is a description of the condition of the atmosphere at a certain place and time. "Mini Wind Turbine", electric motor as generator, LED (toy product)Ģ3.6.5 Hadley cells, Convection cells (See: 3.)ģ7.11.1 Upper winds, wind direction astrolabeģ7.1.2 Wind speed measurements, m s, knots, Beaufort scale "Eco Biker Wind Power Kit", clip to bike to power LED (toy product) See: Weather Station Meteorology, (Commercial).ģ7.7.0 Moisture enters the air, evaporationģ7.8.0 Moisture leaves the air, precipitationģ7.10.0 Weather science, Instruments in a weather stationģ7.34 Solar ultraviolet radiation and skin cancerģ7.5.3 Cloud classification, ten main types of cloudsģ7.3.4 Relative humidity table, depression of the wet bulbġ2.3.2 Saturation vapour pressure over waterģ7.3.5 Sling psychrometer, Whirling psychrometerģ7.3.6 Wet and dry bulb thermometer (hygrometer, psychrometer)ģ7.7.5 Moisture in the air affects the rate of evaporationģ7.7.6 Moving air affects the rate of evaporationģ7.7.7 Surface area affects the rate of evaporationģ7.7.8 Temperature affects the rate of evaporationģ7.8.1 Precipitation, rain gauge, rain, drizzle, snow, hailģ7.8.2 Precipitation, Classification of precipitationģ7.8.7 Moisture condenses on cool surfacesģ7.9.0 Weather and climate, instruments in a weather stationģ7.9.1 Weather and climate, instruments in a weather stationĥ3.1 Coconut weather indicator, Hawaii (JPG)ģ7.9.3 Housing box (Stevenson screen) for weather instrumentsģ7.9.4 Wind speed, wind vanes, anemometersģ7.9.5 Wind speed indicator, Rotation anemometerģ7.9.6 Wind speed indicator, Deflection anemometerģ7.9.7 Wind speed indicator, Pressure tube anemometerģ.2.5.2 Weather indicator, Cobalt (II) chloride solution, invisible writing ink When conducting experiments, wearing gloves can ensure the substance doesn’t transfer to hands.Weather station, Humidity, Dew, Clouds, Windspeed. ![]() Named for a shade of blue, cobalt chloride in liquid or paper form is toxic when ingested. When heated, wet cobalt chloride paper can turn back from pink to blue as the water molecules are burned off and the original crystalline structure of the chemical is restored. ![]() According to the American Chemistry Council, cobalt chloride has a crystalline structure that changes as the molecules shift to make room for water molecules, leading to the color change that makes this substance ideal for detecting the presence of humidity. Cobalt chloride paper can be purchased in premade sheets, but it can also be made by dipping paper into a cobalt chloride solution and letting it dry.Īs humidity increases, cobalt chloride will shift from blue to pink, with a purplish color serving as the mid-phase hue between these two colors. Cobalt chloride is an inorganic salt that is bright blue when it is not exposed to humidity. When testing for humidity, the experimenter can simply use cobalt chloride paper to detect airborne water particles. ![]()
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