00:01
To answer this question, we need to know the definitions of observation, law, and theory.
00:06
A law typically just describes what happened all the time, and a theory attempts to explain why what is happening occurs.
00:21
An observation is just often a one -time observation of what happened, not describing what happens all the time, like a law, but just what happened that time.
00:33
So a says all matter is made of tiny indestructible particles called atoms.
00:41
These types of statements are often left to your own interpretation.
00:48
If all matter is made of tiny indestructible particles called atoms, i'm interpreting this as to be a theory because it is the idea of all matter being made up of tiny indestructible particles that was used to explain something, although they're not telling us what it is explaining, which would be better to help us suggest that this is a theory rather than a law.
01:17
Next, for part b, it says when iron rusts in a closed container, the mass of the container and its contents do not change...