Page 12 - Demo

DENSITY, BUOYANCY & MEASUREMENTDensity Identification SetChallenge students to exercise their measure-ment skills with mass, length and volume as they determine the composition of differ-ent size rods of familiar woods, metals and plastics. Set includes sturdy storage base with one each of acetal, acrylic, aluminum, brass, chlorinated PVC, copper, high-den-sity polyethylene, maple, Nylon®, phenolic, polyethylene terephthalate, polypropyl-ene, polystyrene, PTFE and PVC as well as comprehensive instructions.AP7204 I $66.70Metal Density Cube Set, Economy ChoiceReduce your density lab costs with this economical set of four metal cubes. Students measure the densities of the four metal blocks and then determine their compo-sitions. Simple kit is effective for teaching density at a great value! One-inch metal cubes in the set are aluminum, steel, copper and brass. Instructions are provided.AP6489 I $25.80Specific Gravity Block Set, Set of 4Precision-machined metal blocks feature a heavy-duty hook on one face. Ideal for measurement and density exercises. Each block measures 3.1 cm on a side. Set of four includes one block each of aluminum, brass, steel and copper. AP5714 I $43.85Absolute Zero DeviceUnique device shows the relationship of pres-sure to temperature of a gas, letting students determine the value of absolute zero. The bulb is immersed in hot water, cold water and a dry ice–acetone mixture. Temperatures and pressure readings are recorded. When plotted as pressure versus temperature, the readings provide a value of absolute zero. Bulb diameter is 100 mm. AP4531 I $154.55Elasticity of Gases ApparatusDemonstrate the elasticity of gases using this simple instrument. Set a volume of gas in the piston, then use weights to pressur-ize the system. As the weights are added, the volume of gas is decreased. Students plot volume versus pressure to approximate Boyle’s law. Includes a six-page handout with a reproducible student laboratory handout. AP9022 I $18.00Specific Gravity Metal Specimen SetSet includes four different metal cylinders for use in measurement and density experiments. Their small size (5 cm long x 1.3 cm diameter) makes them perfect for use in a graduated cylinder. Includes copper, brass, aluminum and steel.AP9234 I $18.45Measurement Challenge—A Density Super Value Guided-Inquiry KitStudents learn to make accurate measure-ments, estimate to the proper level of certainty and apply significant figures rules in this hands-on activity. Includes a traditional density experiment, a higher-level predic-tion activity and an open-ended version of the second lab with no procedure. Teaching ideas, reproducible student masters and 30 density blocks of 5 types of plastic are included. Super Value Kit is for 30 students working individually.AP5939 I $85.20