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Powered by 9V battery
Students can measure and prove that the stretch of a spring is proportional to its load
Fitted with plastic rollers
The model displays the nucleus
4- Nematoda: mounted together in two blocks:
Solar Cell Fan Powered by 9V batteryFan with four Solar Cell Diameter 10cm, on plastic stand Diameter 10cm. Premium Quality: Solar Cell Fan is made of high grade construction all the way through, excellent build quality and proven reliability across the range. Designed for use in professional laboratories but is an ideal choice for science classrooms and household use. If you need custom order with different sizes design, please contact us.
