Secular humanism is a comprehensive life stance or world view which embraces human reason, metaphysical naturalism, altruistic morality and distributive justice, and consciously rejects supernatural claims, theistic faith and religiosity, pseudoscience, and superstition.
A lava lamp is made by mixing alcohol and water and mineral oil and dyes, combining each separately. By mixing water and alcohol in the correct proportions, the mineral oil can be made to float.
Fluorescent and compact fluorescent lamps (CFLs), high intensity discharge lamps (HID) lamps contain a small amount of mercury and are identified with the elemental symbol Hg . CFLs average less than 4 milligrams of mercury - about the amount that would cover the tip of a ballpoint pen.