Showing that a chemical is present in a test. positive quality.

Complex set of different facts, ideas or issues.

How hot or cold something is, e.g. the weather.

act or process bringing change. Acts of making or becoming something else. To go from one train, bus, etc. and go to another.

Electronic equipment to increases signal strength.

Electrical device resisting electrical current.

rise in size, amount, or degree of something. Amount something grows by. To make or become larger in size or amount.

An area where cars race in a circle. Electronic equipment consisting of switches. To complete a journey all the way round an area.

symbolic and simplified. (in technical contexts) schematic diagram.

To show or describe something in a particular way.

characterized by absence of distinguishing features. no. Reply to a question or statement that means 'no'. refuse to accept.

Semiconductor device made of materials whose resistance varies as a function of temperature; can be used to compensate for temperature variation in other components of a circuit.

To turn the order of things backwards.

Refusal to accept something new or different.

Use of ideas or skills in a different situation. To move something from one place to another.