What is the scientific method? * a. A series of steps used by scientists to investigate an hypothesis

b. A series of steps used to determine which chemicals are good for use

c. A series of steps used to tell how life began on earth

d. A series of steps used to by scientists to find about technology​

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Joan writes four numbers on the board in standard form, and then she writes their scientific notation

3) in peaches, [oh]=3.16x10-11 m a) find [h+ ] b) what is the ph? c) is the solution acidic, basic, or neutral?