Vocabulary

• used to: Did regularly before, but don't do now
• name for: To give someone or something a particular name, often in honor of someone else.
• for example: As an illustration or instance.
• turn into: To change to become something else
• in the first place: To begin with; as the first point or consideration.
• throw out: To make someone leave, because of bad behavior
• shelf life: The length of time for which an item remains usable, fit for consumption, or saleable.
• in the past: During a former period of time; previously.
• change: To exchange one set of clothes for another
• travel: To go to a place that is far away
• slow: Lacking activity, busyness or excitement
• fast: In a way that is difficult to move or change
• body: The physical structure of a person or animal.
• light: To cause something to burn; put a burning match to
• stay: To keep trying without giving up
• flew: To move in the wind, e.g. a flag
• smoke: To give off a cloud of grey gas from burning
• patient: Not getting annoyed when things take a long time
• understand: To know the meaning of language, what someone says
• fruit: Result or product of something
• teach: To help someone learn or do something
• safe: Highly likely
• sit: To take an exam
• heat: State of anger, excitement, or arguing
• heavy: Greater in amount, degree, or severity than usual
• shelf: Flat, narrow surface on an area of rock or sand
• chemistry: The study of the structure of substances
• bit: Device put in a horse's mouth to control it
• call: A order or request for action
• medicine: Something used in treating illness or pain
• dangerous: Involving the chance of hurt or damage; risky
• kill: To cause someone to experience a lot of pain
• gas: Elements in our air, like oxygen or nitrogen
• suppose: To imagine or guess what might happen
• throw: To use your arm to make something fly in the air
• pass: Act of giving a ball to another player in a sport
• health: (Person, company) being in a good condition; well
• type: Printed letters or blocks used for printing them
• damage: Physical harm that is done to something
• wave: Movement of sound, air or energy
• cancer: Any growth caused by abnormal cell division
• nearby: Close to where you are
• fix: Answer to a problem
• background: Images, color, or information behind the main one
• skin: To defeat someone easily and completely
• suddenly: In an unexpected or very quick manner
• expect: To believe something is probably going to happen
• effect: An advantage, benefit
• increase: To make or become larger in size or amount
• natural: Being as one would expect; being usual or normal
• totally: In a complete way; completely; absolutely
• energy: Physical or mental strength
• human: A person; a man, woman or child
• element: Essential or particular part of something
• nuclear: Concerning or involving the center of an atom
• source: Piece of information; a person giving information
• transform: To change the shape completely in a good way
• severe: Very bad; harsh
• deadly: Causing or capable of causing death
• atom: Smallest bit that matter can be broken down into
• emerge: To rise or appear out of some background
• trap: Device used for catching animals
• bond: Rope, chain or other thing used to tie someone up
• visible: Can see, easily seen or understood
• device: Object, machine, or equipment for a specific use
• generate: To create or be produced or bring into existence
• chemical: Basic substance produced by mixing elements
• carbon: Chemical element with an atomic number of 6
• radiation: Energy transmitted as rays, waves or particles
• stable: In a position where something does not fall over
• detector: Device that receives a signal and responds to it
• swap: To exchange goods without spending money; trade
• unstable: (Of a chair, etc.) likely to move, fall etc.
• detect: To discover or identify the presence of something
• bacteria: The very small creatures that can cause disease
• particle: Adverb or preposition that joins with a verb
• emit: To release or send out (a gas, etc.)
• abruptly: Suddenly; without warning
• nucleus: Center of an atom
• alpha: First letter in the Greek alphabet
• radioactive: Emitting harmful energy from nuclear activity
• beta: Test version of a product or software
• gamma: Third letter of the Greek alphabet
• spontaneously: In a sudden, unplanned way
• electron: A negatively charged particle
• radioactivity: Emission of electromagnetic rays in nuclear decay
• helium: Light, colorless gaseous element with no smell
• ionization: Condition of being dissociated into ions (as by heat or radiation or chemical reaction or electrical discharge)
• penetrate: To enter or pass through something
• inhale: To breathe in something like air or smoke
• electromagnetic: Having magnetic and electrical parts
• ingest: To eat, drink, or swallow something
• neutron: Charge and mass about equal to a proton; enters into the structure of the atomic nucleus