Brain Drain Archive

Spring 2002
Have you known any rocks to move on their own leaving telltale trails? How do these rocks in Death Valley do it? They even move slightly uphill. Give it some thought before peeking at the answer.
Answer

Winter 2002
The clouds around the tail and cockpit of this plane form for the same reason as rain clouds.
What condition causes the clouds to form?
Answer

Fall 2001
Which hemisphere is this storm in?
Where in the world is this?
Answer

Spring 2001
What type of rock is this?
      a. Igneous
      b. Metamorphic
      c. Sedimentary
Answer

Fall 2000
In what month was this photo taken?
Answer