Vocabulary

• shift in: A change or alteration in something.
• think about: To consider something carefully.
• come up with: To think of an idea or solution; produce
• for long: For a considerable period of time.
• set out: To arrange something in an orderly fashion
• in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
• have to: Must do
• aside from
• gross: 144 of something; twelve dozen of something
• slightly: Only a little
• evidence: Factual proof that helps to establish the truth
• bias: Preference to believe things even if incorrect
• consume: To eat, drink, buy or use up something
• bacteria: The very small creatures that can cause disease
• atmosphere: Air around us
• hormone: Chemical produced by the body to control functions
• fluid: A material that can easily flow, e.g. water
• shift: To change in position or direction
• portion: Serving of food that is intended for one person
• absorb: To take up all attention / energy of something
• field: Area of study, such as physics or biology
• theory: Ideas or principles that explain facts or events
• filter: Device to remove certain types of light, sound
• direct: To tell someone in a very clear way to do something
• surface: To give (road) a top layer
• form: Sports team or person's current winning record
• benefit: Good result or effect, something advantageous
• scientific: Concerning academic study of the physical world
• tap: To access a liquid (e.g. in a tree) through a hole
• switch: A change or shift from one method to another
• intake: Amount of something that a person's body consumes
• break: To create a new record e.g. running the 100m dash
• alcohol: A colorless liquid that can catch fire (C2H5OH)
• convert: To switch from a religion, belief etc. to another
• dissolve: To cause something to end
• solution: Mix of a liquid and a solid or a gas
• revolution: When a group overthrows an existing government
• leave: To go away from; depart
• expose: To make visible, without covering or protection
• trace: To make an outline to determine a shape
• plastic: Stiff but usually flexible man-made material
• industrial: Concerning making things in factories
• algae: Green organisms that live in still water
• british: Concerning the culture and people of British
• build: Your physical shape; physique
• multiply: To increase in number by reproducing/having babies
• chemistry: The study of the structure of substances
• germ: Tiny organism that can cause sickness and disease
• rot: To break down into pieces through dying; decay
• daily: Happening every day
• land: Region or country
• expiration: Coming to an end of a period, validity
• indefinitely: Without limit or end
• start: First time or place that a thing exists; beginning
• acidic: Containing acid
• overnight: (Becoming famous, etc.) in a short amount of time
• ration: Restriction of the amount someone can eat, use etc.
• jersey: Shirt worn as part of a sports uniform
• gasoline: Liquid we put in cars to make them run
• date: To have become old-fashioned
• purify: To make pure by removing unwanted substances
• shellfish: Sea animals such as shrimps, lobsters, clams etc.
• chlorine: Greenish-yellow gas with a strong smell
• rum: Alcoholic liquor made from molasses/sugar cane
• run: To depart or travel according to a schedule
• purification: Act of removing unwanted substances
• sick: Having a physical or mental illness
• twitter: To make small chattering sounds, like some birds
• love: Person's name
• worry: Something that causes trouble or concern
• carbonate: To charge a drink with carbon dioxide
• bicarbonate: Salt of carbonic acid (containing the anion HCO3)
• iodine: Substance used on burns, etc. to prevent infection