Get GA Troup County School System Matter Unit Study Guide 2015-2024

An atom is made of subatomic particles. An element is the simplest substance. There are many unique elements but they are all different and cannot be broken down any further and still have their own characteristics. A molecule is 2 or more atoms that are chemically bound.

Thus, paper is made mostly out of organic compounds: that is carbon, hydrogen and oxygen (C, H and O). Paper also contains non organic materials to improve its properties. These may be chalk (CaCO3) and kaolin clay (Al2Si2O5(OH)4). Titanium oxide (TiO2) is also commonly used in paper for bleaching it.

An atom is the smallest particle of an element that still has the properties of that element. Every substance is composed of atoms.

3. Paper, glass, and iron are all made up of atom.

Tissue paper- Tissue paper, like other paper products, is made primarily of cellulose fibres. The fibre might be 100% virgin, 100% recycled, or a mix of both. Due to environmental concerns, 100% recycled fibres are used. Book paper- As the name suggests, used in printing and publishing books.