Final answer:
Matter is made from atoms, which are the smallest units of elements. There are 118 known elements, but only 92 occur naturally. Elements combine in various ways to form the diverse matter in the universe.
Step-by-step explanation:
All matter is composed of extremely small particles called atoms. These atoms are the fundamental building blocks of all matter, and a substance that consists of only one type of atom is known as an element. In total, scientists have identified 118 elements, but not all of these elements can be found naturally on Earth. In fact, only 92 of the 118 elements occur naturally, while the others have either been synthesized in laboratories or are unstable and transient.
Each element has a unique number of protons in its atoms, giving it distinct properties. While the diversity of matter seems immense, it's fascinating that everything is made from these 118 building blocks, combining in various ways to form the complex world around us.