based on or characterized by methods and principles of science.

moving from higher to lower level. To go from standing to the ground, by accident.

Having had your attention taken; curious. To make someone want to know about something.

hostile or argumentative situation or meeting between opposing parties.

fashionable. event or occurrence. To take place or occur.

person who is studying or has expert knowledge of one or more of natural or physical sciences. People who are trained in a science.

Person who studies and works in physics.

in space separating things. In the space that separates two objects.

Lightest of all chemical elements.

make formal public statement about fact or intention.

To figure out a way to handle a difficult problem.

authoritatively or urgently call on someone to be present.

begin to be.

Creating interest, happiness or pleasurable fear. To make someone feel happy, interested or eager.

having paid employment. action of doing work. To be functioning properly, e.g. a car.