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Demonstrates the different thermal expansion of various liquids and their comparison.
Five glass tubes with turned shaped top, graduated in mm, are located inside a trough with a black colored vertical panel.
This back panel provides the easy reading of liquid levels along the scale, while simultaneously facilitating easy removal and mounting of bulbs in the water trough for their convenient filling, care and cleaning.
Clearance item.
NOTE: Care must be taken to prevent air bubbles when pouring liquids into the tubes.