Name a mineral that exhibits the physical property of one direction cleavage.

Which picture (A or B) illustrates the crystal form of fluorite?  

For muscovite, list one diagnostic property that can help distinguish this mineral from others.

On March 22, at what latitude will the noon sun be directly overhead? Use the picture below. It’s called an analemma.

One day, the noon Sun is directly overhead at the latitude 200 North. You are not at 200 North. You view the Sun at noon in the south at an angle of 400. What is your latitude? Work the problem like this: Take 900 – (your noon Sun angle) = your distance in degrees from 200 North.

Use the table to determine how many hours of daylight occur at 900 S latitude on March 22.  

Describe how intensity and duration of solar radiation change from June to December.

Use the table to determine how many hours of daylight occur at 900 S latitude on December 22.

Which picture shows the Earth’s relationship to the Sun on June 22?

What did the Mars rover Opportunity discover on Mars that relates to questions about the existence of water on Mars?