1)what is not true of a scientific law?

a) it must be verified by scientists around the world.
b) it attempts to explain why things happen.
c) it describes what happens in the world around us.
d) it must be supported by many independent scientific investigations.

2)observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory?

a)it has been proven by several scientists independently, resulting in its being accepted as truth.
b)it is based on the beliefs and opinions of the majority of the scientific community.
c)it is an observation of the natural world that has been proven as fact.
d)it is the best explanation that scientists can offer, based on many scientific investigations.

3)a scientist in italy published his findings from a scientific investigation that he conducted. other scientists from around the world conducted similar investigations to test the results. all of the investigations result in similar findings. what does this say about the findings of these investigations?

a)they have been proven to be scientific fact because all the investigations gave similar findings.
b)the findings are automatically promoted to a law because they were proven by so many scientists.
c)they are ready to be published in the media and in text books as a new scientific theory.
d)the results are considered more reliable because they were documented by separate investigations.

4)which of the following is not an example of kinetic energy?

a)mechanical energy
b)nuclear energy
c)electrical energy
d)thermal energy