Could have the kids do this, upload to Edmodo, and then include a write-up explaining the different phases. Hands On Science: Phases of the Moon Activities for Kids - Inspire Creativity, Reduce Chaos & Encourage Learning with Kids
TEACH YOUR CHILD TO READ - Past Tense Irregular Verbs Crossword Puzzle- Such a FUN activity for third grade! Plenty more interactive activities to keep children happy to learn! Super Effective Program Teaches Children Of All Ages To Read.