SC10 Physical Science Chapter 2 Matter

Matter is anything that has __________ and takes up space.

mass

A __________ is a substance that cannot be separated or broken down into simpler substances by chemical means.

element

A __________ is made up of two or more different elements joined by chemical bonds.

compound

The smallest unit of an element is called an __________.

atom

Elements and compounds are classified as __________ substances.

pure

A __________ mixture is one where the substances are not mixed uniformly.

heterogeneous

In a __________ mixture, the substances are evenly distributed.

homogeneous

A __________ is a combination of two or more substances that are not chemically combined.

mixture

Physical properties can be observed without changing the __________ of the substance.

identity

Flammability and reactivity are examples of __________ properties.

chemical

A __________ change affects one or more properties of a substance without changing its identity.

physical

Chemical changes can be detected by signs such as __________, production of heat, or change of color.

fizzing

Mixtures can be separated by __________ changes.

physical

Compounds must be broken down by __________ changes.

chemical

The __________ of a substance is the ratio of its mass to its volume.

density