Differences between BrE and AmE

http://esl.about.com/od/toeflieltscambridge/a/dif_ambrit.htm

The 4 spheres of the earth

Rotation and Revolution

Phases of the Moon

for some fun also check this: http://www.youtube.com/watch?v=90NvIAj6ydw

Teaching the phases of the moon

Teachingisagift: Saw it on Pinterest...Bought it at Dollar Tree...Made it at Home...and a FREEBIE