True or False: Having an e-portfolio where you showcase leadership activities that you partici-
pated in is a good way to gain employment.
A True
B False

What is the measure of how much matter is in an object and that can be measured using a balance? a. height b. volume c. weight d. mass

Does heating a metal wire increase or decrease its electrical resistance? why?

Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to