
Chemicals and toxic substances
Chemicals and toxic substances are substances that can cause harm to living organisms or the environment. Chemicals are materials made up of atoms and molecules, used in products like cleaning supplies, medicines, and foods. Toxic substances are chemicals that have the potential to cause illness, injury, or environmental damage if ingested, inhaled, or touched. Not all chemicals are toxic, but some can be harmful even in small amounts. Understanding their properties, uses, and potential risks helps us handle them safely and minimize health and environmental impacts.