Answer:
Sugar dissolving in warm water
Explanation:
There are two types of change in chemistry; physical and chemical changes.
A physical change is a type of change in which no new substance is formed while a chemical change is a type of change in which a new substance is formed.
Dissolving sugar in warm water is a physical change because no new substance is formed and you easily get the sugar back by evaporating the water
These are the circumstances under which the protest of the students in Tinker v. Des Moines would be deemed unprotected speech:
if their action had clearly threatened order and safety.
And since it didn't, there was no reason for it to be deemed unprotected speech.
Britains reaction to the tea party helped to unite the colonies
The invention from Song, China that had the greatest influence on the spread of learning was paper and printing. This helped to get the public interested in reading.