HM Chap 1 Flashcards
1
Q
Chemistry is
A
the study of the composition, structure, properties, and reactions of matter.
2
Q
A chemical is
A
a substance that has the same composition and properties wherever it is found.
3
Q
A hypothesis proposes a possible explanation for a _______ phenomenon. A hypothesis must be stated in a way that it can be tested by experiments.
a. artificial
b. natural
A
natural
4
Q
An experiment is
A
a procedure that tests the validity of a hypothesis.
5
Q
A theory is
A
a hypothesis that has been validated many times by many scientists.
6
Q
An observation is
A
a description or measurement of a natural phenomenon.
