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Science Assessment

Test date: 9/19/13

Hazardous material substances that are dangerous and may be unsafe to living organisms
Observation Using your 5 senses to gather information around you
Corrosive Damage caused by a chemical (Eating away at an object)
Radioactive When a substance decomposes to another substance and releases energy (radiation)
Explosive Something that blows up/ explodes
Acidic Ph between 6.9-0. 0 being most basic and 6.9 being closest to neutral
Basic Ph between 14-7.1. 14 being most basic and 7.1 being closest to neutral
PH scale Scale used to measure the acidity of a substance
mixture two or more substances phsically combined
Biohazard something hazardeos that can cause harm to any living organism
Matter everything that surrounds you
mass how much substance is present (GRAMS)
volume Amount of space occupied by it's substance (LITERS)
Density amount of mass per volume
Atom Molecules (all matter) is made of atoms-smallest particle of a substance retaining or keeping the chemical property of that substance (neutrons, protons, electrons)
Element A pure substance made of 1 type of atom. All atoms of a given substance have the same number of protons
Compound A pure substance made of 2 elements combined in definite proportion
Solid any form of matter with a definite volume and a definite shape
Liquid any form of matter that has a definite form of volume but no definite form of shape
Gas form of matter with no definite volume of shape
Dilute adding water to make something less concentrated
Density formula D=G/L
Mass mesurment grams
Volume mesurment LITERS
5 elements Hydrogen, Oxygen, Nitrogen, Lithium, Carbon, Copper
3 compounds Propane, Propene, Water
Created by: jrav31