Matter is anything that takes up space and has mass. (weight on Earth) http://www.exploratorium.edu/ro nh/weight/index.html Your weight on other planets and moons http://www.exploratorium.edu/ro nh/weight/index.html
Elements http://www.chem4kids.com/files/ele m_intro.html http://www.chem4kids.com/files/ele m_intro.html
Elements cannot be broken down into other substances by heat, light, or electricity.
Periodic Table of Elements http://www.webelements.com http://www.webelements.com
Periodic Table of Elements is a chart that classifies elements by their properties.
Compound – a substance made up of atoms of more than one element joined together in a molecule http://www.chemicalformula.org/chemistry-games/mix-and-match-chemical-formula
Formula Water H 2 O Carbon dioxide CO 2 Glucose C 6 H 12 O 6 Sodium chloride NaCl Magnesium sulfate MgSO 4
In a chemical formula the symbol of each element is shown with subscript numbers telling how many atoms of each element are in the molecule http://www.chemicalformula.org/chemistry-help/common-chemical-formula http://www.chemicalformula.org/chemistry-help/common-chemical-formula