Definitions
A measure of the pull of gravity upon an object
Weight
A very hard metal that is used to make stainless steel, rechargable batteries, tanks to hold corrosive chemicals, and the five-cent coin
Nickel
Found in two forms, graphite and diamond
Carbon
A chart constructed by Dmitri Mendeleev to arrange the elements in such a way as to group similar elements together
Periodic table of the elements
The only metal that is liquid at room temperature
Mercury
Anything that takes up space and has mass
Matter
"Chrome"; a shiny metal often applied to polished steel to prevent it from rusting
Chromium
A colorless and odorless gas used in chemical factories and as a rocket fuel
Hydrogen
The elements located to the left and center in the periodic table; most have a lustrous silvery color and are solid at room temperature
Metals
The main ingredients of air; together make up almost 99% of the earth's atmosphere (about 78% of one and 21% of the other)
Nitrogen and Oxygen
The amount of matter that makes up an object
Mass
An odorless, yellow solid called brimstone in the Bible; flammable and burns easily
Sulfur
A semimetal that is an ingredient in sand, quartz, and glass; in pure form, used to make computer chips
Silicon
The elements located at the right side of the periodic table; include many solids and several gases
Nonmetals
A nonmetal (halogen) that is a liquid at ordinary room temperatures and pressures
Bromine
The study of what substances are made of, and how one substance can be changed into another
Chemistry
The densest of everyday metals; used to make car and truck batteries, wheel weights, and firearms ammunition
Lead
Phosphorus
The elements in the next to last column of the periodic table; highly reactive, showing a tendency to form compounds with alkali and alkaline earth metals
Halogens
The densest element
Osmium
The amount of matter (mass) in one unit of volume (space)
Density
Zinc
A common alkali metal found in the rocks, soils, and oceans of the earth; does not occur naturally in pure form
Potassium
To turn directly from a solid into a gas (such as iodine does when heated)
Sublime
The most abundant of the transuranium elements
Plutonium