Vocabulary

• due to: Because of; owing to
• depending on: To rely on for support (financial or emotional)
• such as: For example; like
• over time: Gradually; as time passes.
• at risk: In danger; likely to be harmed
• smooth out: To remove wrinkles or creases from something.
• contend with: To struggle or deal with something difficult.
• build up: To increase the amount; collect something
• close off: To block or obstruct an entrance, passage, or area.
• oral hygiene: The practice of keeping the mouth and teeth clean to prevent dental problems.
• cling to: To hold onto something tightly, often for support or safety.
• cause: Belief, goal or organization that people support
• ancient: Very old; having lived a very long time ago
• tiny: Very, very small
• consume: To eat, drink, buy or use up something
• remain: To be left behind; to continue to exist
• risk: To do something potentially dangerous or foolish
• layer: One of several sheets of a material or object
• due: When something is required or expected
• love: Person's name
• human: A person; a man, woman or child
• today: This day; day that is happening now
• expose: To make visible, without covering or protection
• bacteria: The very small creatures that can cause disease
• gradually: Occurring in a slow manner over a period of time
• acid: Sour substance that reacts with metals e.g. lemon