Thermal Expansion Experiment Tool Kits kids Physics Education Science Teaching Aids heat expantion cold shrink reaction STEM Set

Thermal Expansion Experiment Tool Kit kids Physics Education Science Teaching Aids heat expantion cold shrink reaction STEM Set

Random Delivery Description: - Thermal Expansion Experiment Tool Kit - Design to prove the effect of Thermal expansion and contraction - Great physical teaching aids for teacher - Material: Plastic and Metal - Length: 16 cm/ 6.3 inch Specification: - 1. Let the steel ball pass through the ring several times to show that the steel ball can pass through the ring at normal temperature; - 2. Heat the steel ball for 3-5 minutes, and then pass the steel ball through the ring. At this time, the steel ball expands due to heat, so it cannot pass through the ring; - 3. Let the steel ball cool naturally, and the steel ball can pass through the ring Package Includes: 1 x Physical Teaching Aids Note: Due to the manual measurement, please allow 1-2mm differences in size. Due to the light and screen difference, the item color may be slightly different from the pictures. Please understand

Sell Point