PTE

a mechanical disturbance that travels through a material medium as a wave and may be heard

how fast an object moves, measured as distance traveled per unit of time

a measure of how hot or cold a system is, used to describe its thermal state

the amount of three-dimensional space occupied by an object or substance, or enclosed within a boundary

the gravitational force acting on an object

to become dispersed in a solvent at the molecular or ionic level, or cause a substance to do so

an outer garment worn in a laboratory to provide a specified degree of protection for clothing and skin

material containing two or more substances together without a single fixed chemical composition

to move a liquid or mixture around with a tool or device so its parts mix

an immune reaction to a substance that is usually harmless to most people

an eating pattern that provides a suitable variety and amount of nutrients to meet a person's needs

to move air into and out of the lungs

to enter the state of sleep

either of the two main breathing organs in the chest, where gases are exchanged between air and blood

a person's emotional, psychological, and social well-being, including the ability to manage daily life and relationships

to sleep for a short period, usually during the day

a body structure made of different tissues that work together to perform particular functions

movement produced by skeletal muscles that uses energy, including planned exercise and everyday activities

a nutrient made of amino acids that the body uses to build and maintain structures and many functional molecules

to regain health or normal functioning after an illness, injury, or medical procedure

a planned health examination intended to review general health rather than respond only to an immediate complaint

to extend a body part or muscle, or to lengthen it by moving into a particular position

medical care or a procedure intended to relieve, manage, or cure a disease, injury, or other health problem

not containing meat or intended for people who do not eat meat

to prepare the body for exercise by beginning with gentler movement or activity

The mental focus given to selected information, activities, or events.

Wanting to learn about something or find out more.

A feeling such as joy, anger, or fear, often involving changes in thought, body, and behavior.

Relating to or involving feelings.