Serotonin novelty This sensory tube is a

This sensory tube is a mesmerising tube that can be flipped and listened to over and over again

the others being the Niña and the Pinta

The first to stack all their tiles wins

they are used to demonstrate the polarisation of light and double refraction

Investigate metals and salts in electrochemical experiments with a 9-volt battery (not included)

Serotonin novelty This sensory tube is aSerotonin is a neurotransmitter that plays a role in mood, memory, sleep and cognition. This fun Serotonin plush is based on the shape of the actual molecule and includes a swing tag with some fascinating facts. A great gift for students, doctors, nurses, teachers, scientists and anyone with a healthy sense of humour. Size: 19cm x 12cm x 5cm approx.