Measurements
length 8 cm, width = 6.2 cm, and height = 3.2 cm

find the volume of an irregularly shaped object using water displacement
start: 70ml
with rock its 72ml

1. why does the first method for determining volume work only for a regularly shaped object?
2. will the second method for determining volume work for any object or just an irregularly shaped one? why?
3. is one method of measurement more accurate than the other? why or why not?
4. would the displacement method of measurement work for a cube of sugar? what about a cork? why or why not?
5. what did you find out from this investigation? be thoughtful in your answer.

What is the difference between skimming and absorbing methods of the oil removal

How is the electron sea model of metallic bonding different from the band theory? how are they the same? give at least one similarity and one difference between the models

Island arcs island arcs are long, curved chains of oceanic islands associated with seismic activity and mountain-building processes at certain plate boundaries. they occur where oceanic tectonic plates collide. along one side of these island arcs, there is usually a long, narrow deep-sea trench. at island arcs, the denser plate is subducted and is forced into the partially molten mantle under the less dense plate. the islands are composed of the extrusive igneous rocks basalt and andesite. the basalt originates most likely from the plastic mantle. the andesite originates most likely from the melting of parts of the descending plate and sediments that had accumulated on its surface. which list identifies minerals present in andesite from the greatest percentage by volume to the least percentage by volume?