1. Cut two ginger sticks of the same size. 2. Prepare two drinking glass of the same size and fill it with equal amounts of water. Label them A and B. 3. Dissolve three teaspoon of salt in glass B. 4. Place the ginger sticks separately in glass A and glass B. 5. Leave the set-ups overnight. 6. Observe the ginger sticks the next day. Questions: 1. Which is the control set-up? 2. What did you observe in set-ups A and B? Explain your observations. 3. What causes the changes in the set-up? Explain.

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A:

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Learning and memory

Learning is defined as a relatively permanent and irreversible adaptive change in behavior. It always results from experience. The ability of an organism to store and recall the effects, sensations, and knowledge gained through learning and experience is called memory.