Water purification tablet: Kill pathogens in water to make it safe for human consumption.

Lighter: A device that produces a small flame, typically used to light cigarettes.

Raft: A flat buoyant structure of timber or other materials fastened together, used as a boat or floating platform.

Whistle: A clear, high-pitched sound made by forcing breath through a small hole between partly closed lips, or between one's teeth.

Compass: An instrument containing a magnetized pointer which shows the direction of magnetic north and bearings from it.

Magnifying glass: A lens that produces an enlarged image, typically set in a frame with a handle and used to examine small or finely detailed things such as fingerprints, stamps, and fine print.

Fist aid Kit: A set of materials and tools used for giving emergency treatment to a sick or injured person.

Candle: A cylinder or block of wax or tallow with a central wick that is lit to produce light as it burns.

Folding Knife: A small knife with a folding blade or blades, suitable for carrying in a pocket.

Mirror: A reflective surface, now typically of glass coated with a metal amalgam, that reflects a clear image.

Machete: A broad, heavy knife used as an implement or weapon, originating in Central America and the Caribbean.

Needle: A very fine slender piece of metal with a point at one end and a hole or eye for thread at the other, used in sewing.

Battery: A container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power.