Science / Weather / Celsius Temperature Scale: A temperature scale where water at sea level has a freezing point of 0?°C (Celsius) and a boiling point of +100?°C. More commonly used in areas that observe the metric system of measurement. Created MORE
Science / Chemistry / Calorie: The amount of heat required to raise the temperature of 1 g of water at 14.5?°C to 15.5?°C. One calorie is equivalent to exactly 4.184 J. MORE
Science / Weather / Degree Day: A measure of the departure of the mean daily temperature from a given standard. That is one degree day for each degree (Fahrenheit or Celsius) of departure above or below the standard during one day. MORE
Science / Chemistry / Thermometer: An instrument for measuring temperature. MORE
Science / Chemistry / Absolute Zero: (0 K) The temperature at which the volume of an ideal gas becomes zero; a theoretical coldest temperature that can be approached but never reached. Absolute zero is zero on the Kelvin scale, -273.15?� MORE
Science / Periodic Table of Elements / Oxygen (O): Atomic number: 8, Atomic mass: 15.999 g.mol -1, Electronegativity: 3.5, Density: 1.429 kg/m3 at 20?°C, Melting point: -219 ?°C, Boiling point: -183 ?°C, Vanderwaals radius: 0.074 nm, Ionic radius: MORE