Glow sticks are a type of liquid that is made up of a mixture of chemicals that produce a bright light when exposed to light. The chemicals are usually made up of a phosphor that is mixed with a liquid. The liquid is usually a mixture of alcohol and water. The phosphor is usually made up of a compound that is found in the mineral zirconium. The glow sticks are usually used in parties and events to create a bright light. The glow sticks are usually made up of a mixture of chemicals that are mixed with a liquid.