Removing and replacing keys on Acer Aspire laptop's keyboard may require a small screwdriver for precision. Keyboard keys of Acer laptops designed for easy removal and replacement.
How to Measure Air Pollution for a Science Fair Project. Pollution is one among the major problems of todayâs world and air pollution is one root cause of many environmental issues. You can use a magnifying glass for this purpose as the dust particles are too tiny to be seen with necked eye. 2  Count the number of dust particles carefully stuck to the Vaseline in each square and note them down on a note book. 3  Use the number of dust particles sticked to the squares as a proof of air pollution.
Like the Fahrenheit charts above, this Celsius table also displays various levels of discomfort and potential danger. How to read this humidex table. To determine the humidex temperature, find the value closest to your actual outside air temperature on the bottom. Follow that temperature line up until it intersects the actual relative humidity, which is shown on the left. The temperature shown at the point where these two values intersect is the humidex temperature.