These 2 puzzle worksheets reinforce the 38 definitions for the 1st six weeks of the 5th grade Science Scope and Sequence curriculum. There is a worksheet with a word bank and an identical one without the word bank so you can adjust to your student's needs, there is also an answer key. The 1st worksheet contains 17 terms and the 2nd contains 21 terms. Terms include: identify, observe, analyze, classify, investigate, variable, control, hypothesize, accuracy, reliability, advertisements, nutritiona