This set of activities is a great way to introduce or review simple machines. They are in PDF format (in a Zip file) and include a word search, word scramble, matching, and a crossword. Thirty BINGO cards are included. Suitable for 3rd through 5th-grade students, these activities can complement your regular lesson, reinforce and review vocabulary, and would be great as an activity for early finishers or as part of a sub plan. For worksheets on different science topics, click here.