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.
Articulation Bradykinesia (reduced speed of muscles) associated with Parkinson's disease causes difficulty in the initiation of voluntary speech. This can result in delay in starting to talk as well as very slow speech. According to Duffy (1995), there may be freezing of movement during speech.