Evans wants to determine the effect of color on the temperature of the air inside of different colored boxes. He places white, black, and red boxes of the same size and material in the sunlight and a thermometer is placed inside each box. He observes and records the temperatures in the boxes at specific times throughout the day. What is the test variable independent variable in this
investigation?
A. repealed trials
B. size of the boxes
C. color of the boxes
D. recorded temperatures

Rocks, as they are compressed, begin forming mountains above the earth's surface when two continental plates converge. the continental crust increases in depth as the mountains grow above. the himalayan mountains formed at a convergent plate boundary in this manner. the rocks are smashed together causing them to due to the intense heat and pressure from the colliding plates and eventually forming rock. a) melt; igneous b) layer; sedimentary c) recrystallize; metamorphic d) melt into the earth's interior; metamorphic

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never