Package Include
1 x Set of Physical Teaching Aids

Characteristics

- Let the metal ball pass through the ring several times to show that the metal ball can pass through the ring at normal temperature.
- Heat the metal ball for 3- 5 minutes, and then pass the metal ball through the ring.
- Size: About 23.00X4.50X3.00cm/ 9.04X1.77X1.18in
- Design to prove the effect of thermal expansion and contraction.
- Material: Plastic, metal
- Color: As Shown
- At this time, the metal ball expands due to heat, so it cannot pass through the ring.
- Great physical teaching aids for teacher.

Goods Information

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