Place a large button, one piece of elbow macaroni and a few green beads in a plastic ziplock baggy. These represents the parts of the plant cell. The baggy represents the cell membrane, the button represents the nucleus, the macaroni represents the mitochondria and the beads represent the chloroplasts.
Fill the baggy with clear liquid soap. Stop when the soap reaches about halfway up the baggy. The soap represents the cytoplasm in a plant cell. Seal the baggy.
Place the soap-filled baggy inside another ziplock bag. This second bag represents the plant cell wall. Once sealed, let the students squish the "cytoplasm" around and try to name the parts of the cell model. Have the students explain the function of each part.