To observe the effect of temperature on an increasing volume of water. minute, then 1 minute 30, and finally 2 minutes. minutes, as this gave the best results. times, then adding 25cm3 of water each time, so from 50cm3 to 350cm3. experiment. The variables in this experiment were Volume and Temperature.
1 Speech and language problems are often the earliest sign of a learning disability. 2  Find out more about language-based learning disabilities. 3  Hearing loss is often overlooked, and easily identified. 4  If your child is speech/language delayed, their hearing should be tested.
Certain voice disorders may also be considered speech disorders. One of the most commonly experienced speech disorders is stuttering. Other speech disorders include apraxia and dysarthria. Apraxia is a motor speech disorder caused by damage to the parts of the brain related to speaking. Dysarthria is a motor speech disorder in which the muscles of the mouth, face, or respiratory system may become weak or have difficulty moving.