Which of these hypotheses would lead to the best scientific investigation?
A) Lettuce is crunchy.
B) Potato chips taste the best.
C) The average score on the biology test was 78%.
D) People prefer green candy over red candy.

Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.

Using the first volume and temperature reading on the table as v1 and t1, solve for the unknown values in the table below. remember to use the rules of significant figures when entering your numeric response.

The density of the solid phase of a substance is 0.90 g/cm3 and the density of the liquid phase is 1.0 g/cm3. a large increase in pressure will a. lower the freezing point b. raise the freezing point c. lower the boiling point d. raise the triple point e. lower the triple point