Memory Game 5th Grade 3.3 VocabularyOnline version Vocabulary for Unit 3 Week 3 in the 5th grade wonders curriculum by Erin Slegaitis Contact An arrangement of parts Very small bits or pieces of something Formation Something formed or made To wear or wash away slowly; eat away Structure Particles Erode Visible Moisture Water or other liquid in the air or on the surface; a slight wateriness A touching or meeting of persons or things Able to be seen Repetition The act or process of doing again; repeating