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.
Speech delay occurs most often in those with an athetoid type of cerebral palsy. The following factors, alone or in combination, may account for the speech delay: hearing loss, incoordination or spasticity of the muscles of the tongue, coexisting mental retardation or a defect in the cerebral cortex.