Vocabulary

• on earth: Used to emphasize a question expressing surprise or anger.
• have to: Must do
• for example: As an illustration or instance.
• on the surface: Appearing to be true or real until examined more closely.
• on the ground: Located on the surface of the earth.
• rock on: An expression of encouragement or approval, especially in the context of music or performance.
• in the middle of: In the central part or point of something.
• spit up: To vomit a small amount of liquid, especially by babies.
• come from: To have as your native country or city
• heat up: To become warmer; to make something warmer.
• to the point: Expressing something directly and without unnecessary detail.
• to the core: Completely; fundamentally; in every aspect.
• talking about: To discuss a particular topic.
• in fact: Used to emphasize the truth of a statement, especially one that contrasts with or contradicts something else.
• out of it: Unconscious or not completely alert; dazed or confused.
• inside of: Within; in the inner part of.
• form: Sports team or person's current winning record
• planet: One of the bodies that orbit the sun
• system: Set of organized, planned ideas that work together
• atmosphere: Air around us
• core: To take out the central section of a fruit
• earth: Wire connecting an electrical device to the ground
• broad: General; not detailed
• orbit: Path an object takes as it circles another object
• metal: Usually hard shiny material mined from rock
• crust: Hard outer layer of something, e.g. the earth
• asteroid: Very small planets that move around the sun
• solar: Concerning the sun, or its heat
• iron: Heavy metal device heated to smooth clothes
• mantle: History cloak without sleeves worn over clothes
• comprise: To be made up of (different parts)