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.
A child with speech delay has speech development that is typical of a normally developing child of a younger chronologic age; the speech-delayed child's skills are acquired in a normal sequence, but at a slower-than-normal rate. 2. Speech delay has long been a concern of physicians who care for children.