Vocabulary

• have to: Must do
• look at: To use your eyes to focus on something
• of any kind: Of any type or variety whatsoever.
• stuff: Generic description for things, materials, objects
• subscribe: To regularly pay to receive a service
• specific: Precise; particular; just about that thing
• sort: To organize things by putting them into groups
• stick: To push a sharp or pointed object into something
• approach: To get close to reaching something or somewhere
• context: Set of facts surrounding a person or event
• material: Cloth; fabric
• typically: In a normal or usual way
• specifically: As regards a particular thing; closely related to
• describe: To tell the appearance, sound, smell of something
• molecule: Two or more atoms chemically combined
• bit: Device put in a horse's mouth to control it
• bond: Rope, chain or other thing used to tie someone up
• mechanism: Part of a machine that performs a certain function
• explain: To make clear or easy to understand by describing
• surface: To give (road) a top layer
• reaction: Bodily response to a drug or something eaten
• involve: To have or be included as a part of something
• independent: Making your own decisions; acting by yourself
• transition: Change from one state, movement, place to another
• participate: To take part with others in doing something
• distinction: Special quality that makes something different
• phase: Different stages of the moon from new to full
• discuss: To talk about seriously or in great detail
• lot: What happens to a person in life from chance; fate
• channel: Long hole dug in the ground, e.g. to move water
• important: Having power or authority
• science: Study of the physical world, based on facts
• imply: To suggest something, without saying it directly
• kind: In a caring and helpful manner
• spatial: About space
• learn: To get knowledge or skills by study or experience
• catalyst: Person/thing causing a change or event to happen
• hydrogen: Lightest of all chemical elements
• product: Item that can be bought
• adjacent: Being close or near to a border, wall, or point
• start: First time or place that a thing exists; beginning
• sin: Act that breaks a religious law
• understand: To know the meaning of language, what someone says
• remove: To get rid of something completely
• case: Container used to carry things, e.g. clothes
• feel: To be aware of or experience an emotion, sensation
• anti: A prefix meaning 'against' or 'opposed'
• wedge: Golf club designed to hit the ball high in the air
• platinum: Very expensive silver-colored metal
• elimination: Act or process of removing or being removed
• stereo: Device transmitting sound through two speakers
• substrate: A substance which a catalyst has an effect on
• specificity: Quality of being specific rather than general
• pi: The ratio of the circumference to the diameter