1. Challenge #2 Image made with http://www.wordle.net/ T. Trimpe 2008 http://sciencespot.net/

2. What is it? Rearrange the symbols for the elements and use the clues provided to figure out the words. 1. Sir Lancelot had one! Cerium + Nitrogen + Lanthanum 2. Something to solve Selenium + Calcium 3. Beware of this large mammal! Erbium + Oxygen + Rhodium + Osmium + Carbon + Indium 4. This might make you think of the moon! Argon + Nitrogen + Lutetium

3. 1. Sir Lancelot had one! Cerium + Nitrogen + Lanthanum 2. Something to solve Selenium + Calcium 3. Beware of this large mammal! Erbium + Oxygen + Rhodium + Osmium + Carbon + Indium 4. This might make you think of the moon! Argon + Nitrogen + Lutetium The answers are … Ce + N + LaLANCE Se + CaCASE Er + O + Rh + Os + C + In RHINOCEROS Ar + N + LuLUNAR