Flame lab explanation

The flame test is used to determine the identity of an unknown metal or metalloid based on the color the salt changes the flame of the bunsen burner. The heat from the flame excites the ions and makes it change colors. The light spectra can be used to determine the identity of some elements.

video reflection

At first in the video he was talking about how things in the universe start off really complex and get more simple as time goes on.  He then went on to talk about how all matter in space was created 16 billion years ago. This is known as the Big bang theory. Immediatly after the big bang happened particles were cooled and formed, creating subatomic particle clouds that formed  stars and galaxies.