Which sentence states a fact?
The word exoskeleton means "outside skeleton." Creatures with exoskeletons, such as crabs, look scary.
A fact is something that can be proved to be true.
The month of July has more days than the month of June.
This is a fact. It can be proved by looking at a calendar and counting the number of days in each month.
An opinion is something that a person believes, thinks, or feels. An opinion cannot be proved true.
July is a better month than June for camping.
This is an opinion. People may have different opinions about which month is "better" for camping.
The second sentence states a fact.
The word exoskeleton means "outside skeleton."
It can be proved by looking up exoskeleton in the dictionary.
The first sentence states an opinion.
Creatures with exoskeletons, such as crabs, look scary.
Scary shows what a person believes, thinks, or feels. Another person might have a different opinion about what looks scary.