line where earth and sky meet. Limits of someone's experience or understanding.

Present and able to be used.

To examine something in detail to learn about it.

process of taking air into and expelling it from lungs. To stop moving so one can rest.

Used to add new (often different) information.

continuing or valid to final destination. expressing movement into one side and out of other side of opening etc.. moving in one side and out of other side of.

flowing naturally or supplied to building through pipes and taps. action or movement of runner. To cause an animal to move in a certain direction.

devoted to task or purpose. To state a person's name in book, song, in respect.

length or portion of time. Sets time for a class to be held.

picture made using camera, in which image is focused on to light-sensitive material. Pictures taken with a camera. take photograph of.

Vehicle capable of traveling to outer space.

Study of the Earth's rocks, soil etc..

optical instrument designed to make distant objects appear nearer, containing arrangement of lenses, or of curved mirrors and lenses. Tube-shaped device used to see a great distance. slide or cause to slide into itself, so that it becomes smaller.

To celebrate a particular holiday/religious event.

used for emphasis with following adjective functioning as adverb. thing that is unspecified or unknown.