1. A car accelerates from a stop at a rate of 2 m/s2 for 20 s, then con- tinues at a constant speed for 40 s. Graph the speed vs. time of the
car. What is the car's speed at 10 s? What is its final speed?

Which graph represents motion with an object with positive velocity that is located at a position of 3 meters at a time of 0 seconds? a) a b) bb eliminate c) c d) d

The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island

4. now look at the green lines you created by connecting the three boiling point data points and the three melting point data points. for each of these lines, describe any trends you see. 5. locate the elements on your periodic table that you circled in green on your graph. what term or description would you use to identify these elements with respect to the periodic table? 7. using the room temperature line (orange line) and your periodic table, make lists that identify the state of matter (gas, liquid, or solid) in which each element you plotted exists at room temperature. explain your answers.