Sandwich Bag Science: 25 Hands-on Activities for Physical, Earth, and Life Sciences;

Find out how an empty sandwich bag can be jam-packed with science in this collection of learning-rich, hands-on activities. Students discover the force of atmospheric pressure, investigate physical and chemical changes in matter, test germination rates of seeds, and so much more. A fun and easy way to meet the National Science Education Standards! For use with Grades 4–8.