States of Matter
Anything that has mass and takes up space (volume).
matter
Density, melting point, boiling point, melting point.
quantitative properties-properties you can measure using simple tests.
A combination of 2 or more pure substances.
mixture
What is the study of matter and its physical & chemical properties?
Chemistry
Has a sour taste and reacts with metals.
property of an acid
Chopping wood.
physical change
Lustre, colour, clarity, texture, taste, odour.
qualitative properties-properties you can observe using your senses
A substance that contains only one kind of particle such as a diamond.
pure substance
The variable that is changed in an investigation.
independent variable
Compounds that form solutions that can break down fats and oils.
base
Burning a log or frying an egg.
chemical change
A clear, colourless liquid that can be split into two gases with different properties.
water (H2O)
A gas that has electricity running through it and is sometimes considered to be a fourth state of matter.
plasma
All known elements on earth are recorded here.
periodic table
Battery acid 0.5, lemon juice 2.0.
pH of strong acids
Changes of state like melting, freezing, evaporation, condensation, and sublimation.
physical changes
You can not see light through it; light will not pass through.
opaque
The simplest form of a substance that cannot be broken down.
element
The conditions that remain unchanged in an experiment, so you have a reliable result.
controlled variable
A compound that is neither an acid or base and has a pH of 7?
neutral
Colour change, new substance produced, heat given off, bubbles of gas formed, precipitate formed.
signs of chemical change has occurred
A mixture that is the same throughout.
homogenous
A cloudy mixture in which clumps of a solid or droplets of a liquid are scattered throughout a liquid or gas.
heterogenous
The variable that is affected by a change. Eg. the amount of rust on pieces of metal submersed in a salt & water solution.
dependent variable
The property scientists use to identify solutions by the effect of acids and bases on a dye.
litmus