1. Explain the three states of matter. Use water as an example.

Explanation:Matter as we know has 3 states which solid, liquid and gaseous states

Using water as a case study, the solid state of water comes in the form of an ice. When this ice is heated, it changes to the drinkable water (liquid state) and if you continue hearing this water, it will get to a time when it changes to vapour (gaseous state). This happens when the water is continuesly boiling

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

float.

archimedes' principle

denser than water sinks in water.

denser than mercury would sink in it