Which activity is the best demonstration of J. J. Thomson’s use of creativity in his work? ignoring observations in his experiment
interpreting the results of his experiment
physically assembling the apparatus for his experiment
reading about Joseph Proust’s work

Complete the table for ion charge based upon their losing or gaining electrons in the outer shell. (use the periodic table as necessary.) group most likely ionic charge # of valence electrons i +1 ii +2 iii +3 iv +4 or -4 v -3 vi -2 vii -1 viii 0

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

Describe the difference between a. a hypothesis and a theory and b. an observation and an experiment.