science which deals with physical structure and substance of earth, their history, and processes.

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

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.

length or portion of time. Menstrual cycles.

To examine something in detail to learn about it.

action of setting something on fire or starting to burn.

Used to add new (often different) information.

for reason that.

Present and able to be used.

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

devoted to task or purpose. To give your energy, time, etc. completely.

vehicle used for travelling in space.

continuing or valid to final destination. From the beginning of something until the end. By a particular way or process; by the use of.

totally.

flowing naturally or supplied to building through pipes and taps. The act of moving your legs to move quickly. To flow in a certain direction, like a liquid.