PreK-2: Simple measuring instruments are used to observe and compare properties of objects. Changes in objects are investigated. Grade 3: Objects are composed of matter, which has mass and takes up space. Matter includes solids, liquids and gases (air). Phase changes are explored. Heating an...
out. Some pipettes lack a bulb, substituting a piece of cotton. The pipette is inserted into the liquid and a piece of cotton is used to cover the other end. When the cotton is removed, the liquid will spill out, though the cotton can also be used to filter solids out of the liquid...
A refractometer is an instrument used to measure the refractive index of gases, liquids, and translucent solids like gemstones...
Lightning is plasma. more precisely, it's an example of "glow discharge at atmospheric pressure". however, it's not only glow discharge. it's more complex, and, unfortunately, electron energy distribution function can't be estimated accurately for lightning occurring in nature. ...
How many years of college do you have to have to become a chemical engineer? Byanon31114— On Apr 29, 2009 I've checked the requirements for ASU and the majority of the credit hours for this major are Chemistry... i.e. Biochemical, Organic Chemistry, and the works. Not a lot of cr...
Solids, liquids, gases, molecular compounds, low solubility ionic compounds, polyatomic ions, and weak acids will not dissociate. The oxides and hydroxides with alkali or alkaline earth metals will dissociate completely. High solubility ionic compounds (use solubility table) and strong acids will ioniz...
Several other types of thermal rockets have been proposed and may eventually see use. A solar thermal rocket would use solar energy as a heat source, either by exposing the propellant directly to radiation from the sun or using solar energy to power a heat exchanger that would heat the propel...
There are many other examples of diffusion and osmosis in everyday life. One other example of how diffusion works is when you spray air freshner in a room - at first the smell is only in one area, however before long the smell of the air freshner has spread to other parts of the hous...