Students will use a respiration chamber to measure and record the rate of oxygen consumption (cellular respiration) using germinating seeds versus a non-germinating control sample. Teachers manual and Student Study Guide copymasters are included. There are enough materials provided for 8 lab groups. Meets AP Science Practices 1, 2, 3, 6, and 7, and Big Idea 2. Kit Includes: 1 pkg Pea Seeds 1 pkg Plastic Beads 24 Respiration Chambers 24 Rubber Stoppers 48 Washers 24 Graduated Pipets, 1mL 1 pkg Non-absorbent Cotton 1 pkg Absorbent Cotton 30mL Potassium Hydroxide 15% 8 Trays 1 tube Petroleum Jelly Sealant Materials Needed but not Supplied: 8 Graduated Cylinders, 100mL 8 Thermometers 8 Stopwatches or Digital Timers Ice Wax Marking Pencils or Markers Paper Towels Masking Tape DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only WARNING: This product can expose you to chemicals including Phthalates, which is known to the State of California to cause reproductive harm. For more information go to http://www.P65Warnings.ca.gov.