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States of Matter
Properties of Matter
Classifying Matter
What is Chemistry?
Acids & Bases
100
Anything that has mass and takes up space (volume).
What is matter?
100

This property describes how close or far away particles are from one another.

What is Density

100
A combination of 2 or more pure substances.
What is a mixture?
100
Chemistry
What is the study of matter and its physical & chemical properties?
100
Has a sour taste and reacts with metals.
What is the property of an acid?
200
Chopping wood.
What is an example of a physical change?
200

Lustre (shine), colour, texture, taste, odour are what type of property?

Examples of physical properties

200
A substance that contains only one kind of particle such as a diamond.
What is a pure substance?
200
The variable that is changed in an investigation.
What is the independent variable?
200
A chemical with a pH higher than 7.

What is a base?

300
Burning a log or frying an egg.
What is an example of a chemical change?
300

A clear, colourless liquid that is nicknamed the "universal solvent".

What is water? (H2O)

300

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

What is plasma?

300
All known elements on earth are recorded here.
What is the periodic table?
300

Battery acid 1, lemon juice 2 are examples of what?

What is the pH of strong acids?

400
Changes of state like melting, freezing, evaporation, condensation, and sublimation.
What are physical changes?
400

Scale that measures if something is acidic or basic.

What is the pH scale

400
The simplest form of a substance that can not be broken down.
What is the definition of element?
400
The conditions that remain unchanged in an experiment, so you have a reliable result.
What is the controlled variable?
400
A compound that is neither an acid or base and has a pH of 7?
What is neutral?
500

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

What are 4 clues a chemical change has occurred?

500
A mixture that is the same throughout.
What is homogenous?
500

Water in a solution of salt and water.

What is the solvent.

500
The variable that is affected by a change. Eg. the amount of rust on pieces of metal submersed in a salt & water solution.
What is the dependent variable?
500

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

Indicator