Vocabulary

• massive: Very big; large; too big
• thrive: To be or become healthy or successful
• evolve: To develop certain features
• hygiene: Cleanliness; being clean
• rid: To cause to no longer have (pest, problem)
• bacteria: The very small creatures that can cause disease
• puberty: Stage of life when you become sexually mature
• drastically: In a sudden, extreme or severe manner
• annoying: To make someone angry
• shed: Small building used for storage
• blame: To say someone is responsible for something bad
• calm: Without wind or storm; quiet; peaceful
• mechanism: Part of a machine that performs a certain function
• villain: Character in a story who is mean or evil
• mature: Behaving like an adult
• genetic: Of, relating to, or controlled by genes
• exclusively: For the use of only one person or group
• misconception: Wrong or misunderstood idea
• surface: To give (road) a top layer
• dense: Very thick and difficult to see, get through
• population: Number of people who live in a country, area etc.
• digest: To convert food into energy in your stomach
• reaction: Bodily response to a drug or something eaten
• involve: To have or be included as a part of something
• allergic: Of or having a reaction to an allergy
• planet: One of the bodies that orbit the sun
• scrub: To clean with hard rubbing
• sweat: To do an amount of hard work
• permanently: For a long time; always
• invisible: Being unable to be seen
• ecosystem: Types of plants and animals in an specific area
• layer: One of several sheets of a material or object
• rush: To attack someone suddenly in a group
• commute: To lessen or shorten a prison sentence
• naked: Not wearing any clothes; without covering
• cement: Building material made from gray powder, water
• chemical: Basic substance produced by mixing elements
• biological: Being related to life and living things
• alarm: Sound or light used for a warning or alert
• rarely: Not often (seen, done, etc.); infrequently
• hit: To have a negative impact on a person/place/thing
• fact: Something that is known or proved to be true
• fully: Completely or entirely
• fungus: Plant, e.g. mushroom/mold, growing in damp places
• temperature: When you your body heat is above normal
• simple: Not hard to understand or do; not complex
• frantically: In a frenzied, wildly excited or worried way
• active: Moving around a lot or doing many things
• natural: Being as one would expect; being usual or normal
• head: To hit a ball with your head in a game
• yeast: A single-celled fungi used to make bread and beer
• cellular: Concerning a cell of a living thing
• peek: To look at something quickly (often secretly)
• byproduct: A waste product made from making something else
• healthy: In good condition physically, or financially; well
• human: A person; a man, woman or child
• microbiome: the microorganisms (= living things too small to be seen) that exist in a particular environment or in the human body
• travel: To go to a place that is far away
• happen: To take place or occur
• dandruff: White scales of skin found in the hair
• sebum: Oily secretion of the sebaceous glands; with perspiration it moistens and protects the skin
• dry: (Of humor) clever, but not obvious; ironic
• top: To be higher or larger than a specific value
• surprising: To do something that another person didn't expect
• month: One of 12 28-31 day periods in the year