#separator:tab #html:false #tags column:4 Scratch A free block-based coding language made at MIT, launched in 2007 tech-block-coding-and-robotics Block coding Snapping blocks together instead of typing code tech-block-coding-and-robotics Sprite A character or object in a Scratch project tech-block-coding-and-robotics Stage The background area where sprites act tech-block-coding-and-robotics Costume A picture a sprite can wear to change its look tech-block-coding-and-robotics Script A stack of blocks that runs in order tech-block-coding-and-robotics Event block A block that starts code, like 'when green flag clicked' tech-block-coding-and-robotics Motion block A block that moves a sprite tech-block-coding-and-robotics Looks block A block that changes how a sprite appears or speaks tech-block-coding-and-robotics Sound block A block that plays sound tech-block-coding-and-robotics Control block A block for loops and decisions tech-block-coding-and-robotics Sensing block A block that checks for touching, keys or mouse tech-block-coding-and-robotics Operator block A block for math and comparing tech-block-coding-and-robotics Variable A named box that holds a number or text tech-block-coding-and-robotics Loop Repeating blocks tech-block-coding-and-robotics Forever loop Repeats without stopping tech-block-coding-and-robotics Repeat 10 loop Repeats 10 times tech-block-coding-and-robotics If block Does something only when a condition is true tech-block-coding-and-robotics If-else block Does one thing if true and another if false tech-block-coding-and-robotics Broadcast Sends a message to other scripts or sprites tech-block-coding-and-robotics Clone A copy of a sprite made while the project runs tech-block-coding-and-robotics Coordinates The x and y numbers that tell where a sprite is tech-block-coding-and-robotics x position How far left or right a sprite is tech-block-coding-and-robotics y position How far up or down a sprite is tech-block-coding-and-robotics Direction The angle a sprite is facing tech-block-coding-and-robotics Remix Making a copy of someone's project to change tech-block-coding-and-robotics Debugging Finding and fixing mistakes in code tech-block-coding-and-robotics Bug A mistake in code tech-block-coding-and-robotics Sequence Steps in the right order tech-block-coding-and-robotics Algorithm Step-by-step instructions tech-block-coding-and-robotics Unplugged coding Learning coding ideas without a computer tech-block-coding-and-robotics Pseudocode Code ideas written in plain words tech-block-coding-and-robotics Event Something that happens, like a click tech-block-coding-and-robotics Input What you give to a program tech-block-coding-and-robotics Output What a program shows or does tech-block-coding-and-robotics Function A named group of blocks you can reuse tech-block-coding-and-robotics Custom block Your own block made from other blocks tech-block-coding-and-robotics Hour of Code A worldwide event that introduces coding in one hour tech-block-coding-and-robotics Code.org A nonprofit that offers free coding lessons tech-block-coding-and-robotics Robot A machine that can sense and act tech-block-coding-and-robotics Sensor A part that detects things like light, touch or distance tech-block-coding-and-robotics Motor A part that makes things move tech-block-coding-and-robotics Actuator A part that makes a robot do something tech-block-coding-and-robotics Microcontroller A tiny computer that controls a device tech-block-coding-and-robotics micro:bit A small programmable board with lights, buttons and sensors tech-block-coding-and-robotics Arduino A microcontroller board used in projects tech-block-coding-and-robotics Raspberry Pi A small low-cost computer tech-block-coding-and-robotics LED A small light that glows when electricity flows through it tech-block-coding-and-robotics Servo A motor that turns to a set angle tech-block-coding-and-robotics Ultrasonic sensor Measures distance using sound tech-block-coding-and-robotics Line-following robot A robot that follows a line using sensors tech-block-coding-and-robotics Obstacle avoidance A robot turns to avoid hitting things tech-block-coding-and-robotics Autonomous Working by itself without being controlled tech-block-coding-and-robotics Remote control Controlling a device from a distance tech-block-coding-and-robotics Circuit A closed path electricity flows through tech-block-coding-and-robotics Battery Stores energy to power a circuit tech-block-coding-and-robotics Switch A part that opens or closes a circuit tech-block-coding-and-robotics Conductor A material that lets electricity flow, like copper tech-block-coding-and-robotics Insulator A material that stops electricity, like rubber tech-block-coding-and-robotics Prototype A first working model tech-block-coding-and-robotics Design process Ask, imagine, plan, create, test, improve tech-block-coding-and-robotics Engineer A person who designs and builds solutions tech-block-coding-and-robotics Computational thinking Solving problems with steps, patterns and breaking things down tech-block-coding-and-robotics Decompose Break a big problem into smaller parts tech-block-coding-and-robotics Pattern Something that repeats tech-block-coding-and-robotics Abstraction Ignoring details to focus on what matters tech-block-coding-and-robotics Maze challenge A common puzzle for practicing sequences and loops tech-block-coding-and-robotics