States of Matter
Properties of Matter
Classifying Matter
What is Chemistry?
Acids & Bases
100

Anything that has mass and takes up space (volume).

matter

100

Density, melting point, boiling point, melting point.

quantitative properties-properties you can measure using simple tests.

100

A combination of 2 or more pure substances.

mixture

100

What is the study of matter and its physical & chemical properties?

Chemistry

100

Has a sour taste and reacts with metals.

property of an acid

200

Chopping wood.

physical change

200

Lustre, colour, clarity, texture, taste, odour.

qualitative properties-properties you can observe using your senses

200

A substance that contains only one kind of particle such as a diamond.

pure substance

200

The variable that is changed in an investigation.

independent variable

200

Compounds that form solutions that can break down fats and oils.

base

300

Burning a log or frying an egg.

chemical change

300

A clear, colourless liquid that can be split into two gases with different properties.

water (H2O)

300

A gas that has electricity running through it and is sometimes considered to be a fourth state of matter.

plasma

300

All known elements on earth are recorded here.

periodic table

300

Battery acid 0.5, lemon juice 2.0.

pH of strong acids

400

Changes of state like melting, freezing, evaporation, condensation, and sublimation.

physical changes

400

You can not see light through it; light will not pass through.

opaque

400

The simplest form of a substance that cannot be broken down.

element

400

The conditions that remain unchanged in an experiment, so you have a reliable result.

controlled variable

400

A compound that is neither an acid or base and has a pH of 7?

neutral

500

Colour change, new substance produced, heat given off, bubbles of gas formed, precipitate formed.

signs of chemical change has occurred

500

A mixture that is the same throughout.

homogenous

500

A cloudy mixture in which clumps of a solid or droplets of a liquid are scattered throughout a liquid or gas.

heterogenous

500

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

500

The property scientists use to identify solutions by the effect of acids and bases on a dye.

litmus