Magnetic Field Demo Board (with small magnetic needles) Specimen This real dissected specimen of

This real dissected specimen of Star Fish has been embedded in plastic for observation and study

The air bubble can be made more visually obvious using colored water

or at-home learning activities

along with a ceiling bracket for stable mounting

A candle is placed under one of the chimneys causing the convection currents

Magnetic Field Demo Board (with small magnetic needles) Specimen This real dissected specimen ofMagnetic Field Demo Board (with small magnetic needles). Consists of small magnet needles, used with bar magnet to show magnet field. Premium Quality: This product 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,