Matter

matter• Fist to five• Definition

• anything that has mass and takes up space

• Sentence• Apples, parrots, computers,

and humans are all made of matter.

Physical properties

• Fist to five• Definition

• Characteristics of a substance that can be observed or measure without changing the substance into something else

• Sentence • Some physical properties, such as

color, can be observed directly.

mass• Fist to five• Definition

• The amount of matter in an object• Sentence

• The mass of an 18-wheel truck is greater than the mass of a small car, because the truck has more matter.

Weight • Fist to five• Definition

• A measure of the pull of gravity on an object

• Sentence • While the mass of an object is always

the same, the weight of an object is not.

Volume • Fist to five• Definition

• The amount of space that an object takes up

• Sentence • Volume can be measured in several

ways.

Density• Fist to five• Definition

• The concentration of matter in an object • Sentence

• Density is calculated by using a certain formula.

Solubility

• Fist to five• Definition

• The ability to a substance to be dissolved

• Sentence • The solubility of substances can be

used to help identify them.

Solid • Fist to five• Definition

• Has a definite shape and a definite volume

• Sentence • A solid feels firm when you touch it

because the particles that make it up are packed tightly together.

Liquid • Fist to five• Definition

• Has a definite volume but no shape• Sentence

• The particles in a liquid move freely enough to slide past one another.

Gas • Fist to five• Definition

• Does not have a definite shape or volume

• Sentence • The particles in a gas are the farthest

apart and move the fastest.

Evaporation • Fist to five• Definition

• The process by which a liquid changes into a gas

• Sentence • Evaporation is part of the water cycle.

Condensation • Fist to five• Definition

• The process by which a gas changes back into a liquid

• Sentence • Condensation is the opposite of

evaporation.

Reactivity • Fist to five• Definition

• The ability of a substance to react chemically

• Sentence • Reactivity refers to the chemical joining

or separation of two or more substances.

Combustibility

• Fist to five• Definition

• The chemical property of being able to burn

• Sentence • Some substances can be identified by

certain characteristics of their combustibility.