Explain element, compound and mixture

Sure! An element is a pure substance that is made up of only one type of atom. For example, oxygen is an element because it is made up of only oxygen atoms. A compound is a substance made up of two or more different types of atoms that are chemically bonded together. For example, water is a compound made up of hydrogen and oxygen atoms bonded together. A mixture is a combination of two or more substances that are not chemically bonded together. For example, a trail mix is a mixture of nuts, seeds, and dried fruits. An analogy to help understand the difference between the three is that elements are like building blocks, compounds are like mixtures of different building blocks, and mixtures are like a collection of different toys in a toy box. A verifiable fact is that there are currently 118 known elements on the periodic table.