Investigating Properties of Matter Unit 1

Density

• The mass of a substance per unit volume, often measured in grams per cubic centimeter (g/cm³).

• The weight of an object divided by its surface area.

• The total mass of an object regardless of its volume.

• The volume of a substance divided by its mass.

Homogenous mixture

• A mixture in which the components are uniformly distributed, and the composition is consistent throughout.

• A mixture where the components are visibly distinct and can be separated easily.

• A mixture that contains two or more substances that are not evenly distributed.

• A mixture that has a uniform composition but can be separated by physical means.

Pure substance

• A material with a variable composition and inconsistent properties throughout.

• A material with a constant composition and consistent properties throughout, such as elements and compounds.

• A mixture of two or more substances that can be separated by physical means.

• A substance that can exist in multiple states of matter simultaneously.

Properties of matter

• Characteristics that define different types of matter, including physical and chemical properties.

• Only the physical characteristics of matter.

• The chemical reactions that matter can undergo.

• The historical significance of matter in science.

Heterogenous mixture

• A mixture in which the components are uniformly distributed.

• A mixture in which the components are not uniformly distributed, and different parts of the mixture are visible.

• A mixture that contains only one type of substance.

• A mixture that has a uniform composition throughout.

Liquid

• A state of matter with a definite volume but no definite shape, taking the shape of its container.

• A state of matter that has a definite shape and volume.

• A state of matter that has no definite shape or volume.

• A state of matter that can be compressed easily.

Fluid

• A solid substance that maintains a fixed shape.

• A substance that can flow and take the shape of its container, including liquids and gases.

• A type of gas that cannot be compressed.

• A mixture of different solids that do not flow.

Solid

• A state of matter with a definite shape and volume, with particles that are closely packed together.

• A state of matter that has no definite shape but has a definite volume.

• A state of matter that can flow and take the shape of its container.

• A state of matter that exists only at extremely high temperatures.

Gas

• A state of matter with a definite shape and volume.

• A state of matter that has a fixed shape but no fixed volume.

• A state of matter without a definite shape or volume, with particles that move freely and spread apart.

• A state of matter that is always solid and does not change form.

Kinetic energy

• The energy possessed by an object due to its motion.

• The energy stored in an object at rest.

• The energy released during a chemical reaction.

• The energy required to change an object's temperature.