9781422276044

WORDS TO UNDERSTAND

accuracy correct or exact in measure aeronautics the science of flight artificial not natural or man-made assemble to put together in order to join automatic something that works on its own

bipedal one who walks on two legs collapse fall apart or break down companionship to be associated as a fellow or friend diagnose a scientific examination of the body dimension the extension or measure of an object excrete to remove or throw out of the body feedback to give a reaction or response in return fiction a part of literature that uses imaginative concepts to describe things gesture to use a body part to express a thought or emotion hydraulic creating power by using the motion of water or another liquid infection to be infected with germs inspection to view or examine carefully install to connect or activate for use interact to talk, speak, or react in response interplanetary a space mission that is planned for study of other planets intruder a person who enters another’s property without per- mission joystick a small, sticklike lever used to control objects manufacture to build or construct something mechanical related to machinery mimic to copy or act like someone else

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SCIENCE & TECHNOLOGY