It is a substance that cannot be separated into simpler substances by chemical means.

Molecules are held close together in an orderly fashion with little freedom of motion.

Three (3) examples of intensive properties.

It is one of the frontiers that the chemists are currently exploring in relation to the planting and harvesting of good quality crops.

Chemistry is the study of __________ and the ____________ it undergoes.

Chemistry is often called as ____________________.

Although chemistry is an ancient science, its modern foundation was laid when intellectual and technological advances enabled scientists to break down substances into even smaller components and consequently to explain many of its characteristics.

The rapid development of increasingly sophisticated technology has given us even lesser means to study things that cannot be seen with the naked eye.

Matter is anything that occupies __________ and has ___________.

A form of matter that has a definite composition and distinct properties.

A combination of two or more substances in which the substances retain their distinct identities.

A substance composed of atoms of two or more elements chemically united in fixed proportions.

A type of mixture in which the composition of the mixture is the same all throughout.

Process from gas to liquid.

A type of mixture in which the composition of the mixture is not uniform.

It is one of the frontiers that the chemists are currently exploring in relation to the discovery and development of viable alternative source of power that can be utilize for the consumption of the people.

Any mixture, whether homogeneous or heterogeneous, can be created and then separated by physical means into pure components without changing the identities of the components.

Branch of chemistry that is concerned with the art and science of determining what matter is and how much of it exists.

Up to date, 117 elements have been identified already.

He was the Greek philosopher who added the fifth fundamental element - ether / aether.

Most elements are naturally-occurring on Earth and the others are created by the scientists in the laboratory.

Process from solid to liquid.

For convenience, chemists use symbols of one of two letters to represent the elements. The first letter of a symbol is always capitalized but any following letters are not.

It is one of the frontiers that the chemists are currently exploring in relation to the upgrade and advancement of different items that profoundly improved the quality of our lives.

The symbol of some elements are derived from their Greek names, whereas most of them come from their English names.

To separate the iron-sand mixture, we cannot use a magnet to remove the iron filings from the sand.

Compounds can be separated only by chemical means into their pure components.

He was the Greek philosopher who thought that all matter is composed of water.

Substances can exist as solid, liquid, and gas.

Mixtures do not have constant composition.

Molecules are close together but are not held so rigidly in position and can move past one another.

Process from liquid to gas.

Molecules are separated by distances that are large compared with the size of the molecules.

Process from solid to gas.

He was the Greek philosopher who thought that all matter is composed of fire.

Process from liquid to solid.

Property that can be measured and observed without changing the composition or identity of a substance.

Property that carry out changes in the composition of a substance.

He was the Greek philosopher who thought that all matter is composed of primal element which is air.

Process from gas to solid.

An intensive property that refers to the perception of the different wavelengths of light.

He was the Greek philosopher who popularized atomism.

Branch of chemistry that is concerned with the study of structure, properties, composition, and reactions of carbon-containing compounds.

A chemical property that refers to the energy released when a compound undergoes burning.

An intensive property that refers to the measure of the resistance of a mineral to scratching.

An intensive property that refers to the appearance of quality of light reflected from the surface of a mineral.

Three (3) examples of extensive properties.

A chemical property that refers whether a compound will burn when exposed to flame.

Branch of chemistry that is concerned with the study of structure, composition, and chemical reactions of substances in living systems.

He was the Greek philosopher who proposed that all matter is made up of four fundamental elements - earth, water, air, fire.