Warning signs

Toxic substances contain poison. They are labeled with a skull and crossed bones.

Corrosive substances are chemicals that can damage the skin. Corrosive substances can spill from a test tube onto a surface.

Explosive substances can cause explosions that result in throwing particles at a very high speed and usually produce light, heat, and sound.

Flammable substances are materials that can catch fire easily. Its symbol is a flame, and these substances evaporate very easily into air.

Oxidants are substances that combine easily with oxygen. The symbol of oxidant is flame on a circle. These substances speed up the burning of other substances.

Harmful substances negatively affect body parts or the whole of the body when exposed to them for a long time.

Irritants are substances that cause irritation or choking in parts of the body.

Radioactive substances emit harmful radiation. When the radiation penetrates the body of an organism like a human being, it may damage body cells and cause skin diseases.