a remote control - A device that controls a machine from a distance by means of radio or infrared signals, a satnav - System of comuputers and satellites, used in vehicles and other places to tell you where something is, where you are, or how to get to a place , speakers - Parts of a radio, television, or computer, or of a piece of electrical equipment for playing recorded sound, through which the sound is played, headphones - A device with a part to cover each ear through which you can listen to music, radio broadcasts, without other people hearing, a wasching machine - A maschine for washing clothes, sheets, and other things made of cloth, a dishwasher - A machine that washes dirty plates, cups, forks, etc., a vacuum cleaner - A machine that cleans floors and other surfaces by sucking up dust and dirt, to charge - To put electricity into an electrical device such as a battery, to insert  - To put something inside something else, to plug in - To become connected to a piece of electrical equipment or to the main electricity supply, to press - To push something firmly, e.g. a button, to select - To choose something, or to make a choice, to switch on - To start the flow or operation of something by means of a tap or a button, to turn off - To stop the operation or flow of something by means of a tap, switch, or button, to tap sg. - To touch gently and quickly on the screen with a finger , a research - The systematic investigation into and study of materials and sources in order to establish facts and reach new conclusions, to analyse - To examine something methodically and in detail, typically in order to explain and interpret it, a space craft - A vehicle used for travelling in space, to develop - To grow and cause to grow and become more mature, advanced, or elaborate, a theory - A formal statement of the rules on which a subject of study is based or of ideas that are suggested to explain a fact or event or, more generally, an opinion or explanation, to improve - To cause something to get better, fossil fuels - Substances such as gas, coal, and oil, that were formed underground from plant and animal remains millions of years ago, climate - The general weather conditions usually found in a particular place, an invention - Something that has never been made before, or the process of creating something completely new, an experiment - A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact, evolution - The process of gradual development of something, an expert - A person who is very knowledgeable about or skilful in a particular area, energy efficient - Using less energy to perform the same task; eliminating energy waste, chemicals - Artificial substances used in or resulting from a reaction involving changes, especially derived artificially for practical use, to observe - To watch carefully the way something happens or the way someone does something, especially in order to learn more about it,

B1+ Science and technology

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