The student observed a different sidewalk that was in the shade. Several hours after the storm ended, this sidewalk was still wet.
Explain why water was still on the sidewalk that was in the shade.

How does litmus paper indicate an acid?

Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat

Using data from seismic waves, geologists have learned that earth’s interior is made up of several