The triclinic shape of copper sulfate can be seen in this cluster of crystals. Copper sulfate crystals are somewhat strange. Some crystals can hold their color for years with no change, while others dehydrate and turn into a white powder. This crystal of copper sulfate is nearly twenty years old.ne of the very best chemicals for growing crystals is copper sulfate. The only trouble with it is that is a poisonous chemical compound. Because of its poisonous nature, it has been used to kill tree roots in sewers. A solution of copper sulfate is simply flushed down the toilet to kill tree roots.
A sensory system is a part of nervous system consisting of sensory receptors that receive stimuli from internal and external environment, neural pathways that conduct this information to brain and parts of brain that processes this information.
Sensory neurons connect sensory receptors to the CNS. The CNS processes the signal, and transmits a message back to an effector organ (an organ that responds to a nerve impulse from the CNS) through a motor neuron. The PNS has two parts: the somatic nervous system and the autonomic nervous system.