Vocabulary

• bunch up: To move closer together in a group.
• for example: As an illustration or instance.
• turned out: To arrive for a public event or entertainment
• check out
• cause: Belief, goal or organization that people support
• phenomenon: Unusual event, fact that can be studied
• theory: Ideas or principles that explain facts or events
• system: Set of organized, planned ideas that work together
• long: Person's name
• nervous: Concerning the system of nerves in the body
• grip: To hold someone's interest
• study: To focus on learning something usually at school
• evolutionary: Concerning gradual change over time
• water: Clear liquid that forms the seas, rivers and rain
• blood: Red liquid in the bodies of people and animals
• happen: To take place or occur
• foot: Base of something such as a mountain or vase
• moisture: Small amount of wetness that can be felt
• immerse: To put something in liquid until it is covered