1. Explain how you could experimentally determine whether
the outside temperature is higher or lower than 0 °C (32 °F) without using a
2. Identify each of the following statements as being most
similar to a hypothesis, a law, or a theory. Explain your reasoning
(a) Falling barometric pressure precedes the onset of bad
(b) All life on earth has evolved from a common, primitive
organism through the process of natural selection.
(c) My trucks gas mileage has dropped significantly, probably
because its due for a tune-up.