Different types of motor oils are used in car engines, based on their
viscosities. If you use an oil with a certain
viscosity in the summer, would you use an oil
with greater or less viscosity in the winter?
Explain.

In the reading, yao chen-yuan describes traveling to deliver a message. why was he willing to risk danger to travelto tientsin? he wanted to the boxers with their cause

After cloud droplets form, what must happen to them for precipitation to occur?

Mrs. smith ordered a root beer float (vanilla ice cream + root beer). mrs. smith noticed that the three states of matter (solid, liquid, and gas) all existed simultaneously in her root beer float. a. identify each phase of matter in the root beer float. b. describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? ) c. identify one phase change you would see in a root beer float and described what causes this change.