While at the beach, Lee collected this pile of rocks. How could Lee find out whether the rocks contain the same minerals? 
A) Compare their sizes.
B) Compare their shapes.
C) Compare their masses.
D) Compare their colors.

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

Four 5-gram blocks of metal are sitting out in the sun and absorb the same amount of heat energy. use the following specific heat capacity data to determine which block will increase its temperature the most.

What is a possible explanation for a set of facts that can be tested by further investigations called