مميزات خاصة

Physical experiment material-- use the small ball through the ring at room temperature.
Expansion and contraction experiment-- demonstrate solid or metal thermal expansion and cold contraction phenomenon.
Tools-- let the metal ball pass through the ring several times to show that the metal ball can pass through the ring at normal temperature.
Supply-- made of materials for durability.
Physics experiment material-- the metal ball is then placed on an lamp and heated for 3- 5 minutes, it can not pass through the ring.

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Package Include
1 x Set of Physical Teaching Aids

Characteristics
- Material: Plastic, metal physics demonstration equipment
- Color: As Shown Experiment Material for Physical
- Size: About 23.00X4.50X3.00cm/9.04X1.77X1 Experiment Tool.
- It is made of materials for durability physics equipment.
- Demonstrate solid or metal thermal expansion and cold contraction phenomenon Teaching Aid.
- The demonstrator can be used for primary science class and middle physics experiment experiment accessory.
- Scientific physical experimental tool to exercise practical ability Physical Experiment Material.
- Great instrument for learning physical thermal expansion and cold contraction Physical Experiment Tool.

Goods Information
laboratory experimental Are you looking for a professional, yet affordable physics experimental kit? Are you in search of a sturdy, trustworthy tool that can help junior know the basic physical knowledge? If yes, look no further! Our professional physics experimental kit must meet your needs

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