Matter

• Mata is what things are made of and it possesses two fundamental properties: mass, which is the quantity of matter that it has, and volume, which is a space it occupies.
• Mata can be in three states: solid form, liquid form, and gas form.
• Solid state is characterized by having a fixed volume and size, but in some cases, its size can be changed like with plasticine or clay, making them malleable solids.
• Liquid state is characterized by having a fixed volume and variable size, taking the container's shape like a glass or jug.
• Gas state is characterized by having a variable volume and size, always occupying the full volume of the container.
• Changes in state happen after cooling or heating matter, and there are different types of changes: melting, solidification, evaporation, and condensation.
• Melting is when matter changes from its solid to liquid form and happens after rising temperature, for example, when an ice cube melts or when water is heated.
• Solidification is the process where matter changes from liquid to solid form, it happens when water is put in the freezer and turns into ice.
• Evaporation is when matter changes from liquid to gas after liquids are heated, for example, when water is boiled.
• Condensation is a step from gas to liquid and happens when matter in gas states is cooled.
• When water vapor touches a cold surface, it cools and turns into liquid, producing steamy windows or mirrors.