Vocabulary

• of course: Sure ; Certainly
• step into: To enter a place or situation.
• in the air: Present or circulating in the atmosphere.
• at a time: Separately; one by one
• through the floor: To decrease or fall extremely quickly.
• force in: To enter a place by applying physical force.
• think about: To consider something carefully.
• scale: Size, level, or amount when compared
• force: Group of persons trained for military action; army
• position: Person's opinion or attitude about something
• suppose: To imagine or guess what might happen
• gravity: (Of a situation) extreme seriousness
• direction: When someone tells people what to do
• involve: To have or be included as a part of something
• mass: Religious ceremony in some Christian churches
• equal: Same in shape, size, or number
• examine: (Medical) to test to find out what is wrong
• accelerate: To cause to occur earlier than expected
• fall: Season after summer and before winter; Autumn
• frightening: To make someone afraid or nervous
• normal: Standard or regular way of doing something
• hit: To have a negative impact on a person/place/thing
• kind: In a caring and helpful manner
• ceiling: Top part of a room above your head
• crash: To damage an object by causing it to hit something
• motion: Suggestion at a meeting
• relative: Measured or considered in comparison to another
• stand: To be a candidate in an election
• head: To hit a ball with your head in a game
• step: Movement done as part of a particular dance
• pull: Act of breathing in smoke, as from a pipe
• change: To exchange one set of clothes for another
• suspend: To hang something or someone from something
• hard: Difficult to do; difficult to understand
• fast: In a way that is difficult to move or change
• elevator: Machine that carries people between floors
• weigh: To balance things against each other
• weight: How heavy something is
• downward: Moving from a higher to a lower condition/place
• cable: To transmit a message over a wire
• acceleration: Increase in the speed or rate of something
• snuck: To move around in a way so no one will see you
• net: Remaining amount after something is taken away
• upward: Toward some higher point or position