When ice melts, what happens to the water molecules? a) the attractions between the water molecules weaken. b) the kinetic energy of the water molecules decreases. c) the attractions between the water molecules get stronger. d) the water molecules break free of all attractions to each other and get very far apart.

Which at first gave the south an edge in the civil war? a. a better-equipped army b. the invention of ironclad ships c. the drafting of slaves into the army

Which is the best description of how a scholarship differs from a federal education grant?

Pj conducts an experimental study on the effects of soft music during high stakes science testing. he randomly assigns students at the school. in one condition he does not provide music for testing while in the other group he does provide the music. he administers a pretest at the beginning of the year and a posttest at the end of the year. pj’s design is best described as a: a.static group comparisonb. pretest-posttest control group designc.control-group-time-series designd. nonrandomized control-group pretest-posttest design