Thermal Expansion Experiment Kit - Small Solid Materials, Physics Science Educational Instrument

Specification:Product Name: Thermal Expansion and Cold Shrinkage Test MaterialsMaterial: PVC material, imported paint, computer color matching, advanced color paintingScope of application: teaching, decoration, demonstration, doctor-patient communicationProducts Include:1 × Thermal Expansion and Cold Shrinkage Test MaterialsNOTE !!!--1-2 cm measurement error is a reasonable range, due to the manual measurement methods.--Please be reminded that due to lighting effects, monitor's brightness / contrast settings etc, there may be a little difference in the color of the pictures and the actual item.

• * Great for Kids' science project, Biology/Anatomy learning, teacher's Demo props on the class, birthday for friends, families, parents, kids, etc.
• * This experimental material is used for scientific grouping experiments to demonstrate the thermal expansion and contraction of metal and non-metal objects.
• * Hold the copper ball and the ring, and let the copper ball pass in the ring first to show that the copper ball can pass the ring smoothly at room temperature.
• * Put the copper ball on the alcohol lamp and heat it for 3-5 minutes, and then hold the copper ball to pass the ring. At this time, the copper ball cannot pass the ring due to thermal expansion.
• * Note: After use, apply petroleum jelly to the of the metal ball to avoid oxidation and rust. Store in a cool and dry place to avoid product aging.