30 points!
there are people who believe that the left brain is the more important hemisphere and needs to be developed as much as possible since it reflects the values that need to be increased in our schools (math, science, and language). the other side of the argument says that we need to develop the right brain skill of music and art more. realizing that we use both sides of our brain for most activities, where do you stand on the right brain-left brain development debate? what subjects should be taught in grade schools to increase education? post a thread and respond to another posting.

THURSDAY, Aug. 15 (HealthDay News) -- Brain scans show no evidence that people are predominately right- or left-brained, researchers report.

The new findings challenge the widely held belief that people use one side of their brain more than the other, and that this influences their personality traits. For example, left-brained people are said to be logical and detail-oriented, while right-brained people are creative and thoughtful.

For the study, University of Utah neuroscientists analyzed brain scans from more than 1,000 people, aged 7 to 29. The researchers examined thousands of brain regions for indications that people are more likely to use either the right or left side of the brain, but found no signs that this was the case.

The study was published in the Aug. 14 online edition of the journal PLoS One.

"It's absolutely true that some brain functions occur in one or the other side of the brain. Language tends to be on the left, attention more on the right. But people don't tend to have a stronger left- or right-sided brain network. It seems to be determined more connection by connection," lead author Dr. Jeff Anderson said in a University of Utah Health Sciences news release.

These are groundbreaking findings that may change the way people think about the right-brain versus left-brain theory, said study co-author Jared Nielsen, a graduate student in neuroscience.

"Everyone should understand the personality types associated with the terminology 'left-brained' and 'right-brained' and how they relate to him or her personally; however, we just don't see patterns where the whole left-brain network is more connected or the whole right-brain network is more connected in some people," Nielsen said in the news release.

"It may be that personality types have nothing to do with one hemisphere being more active, stronger or more connected," he said.

WebMD News from HealthDay

answer : one can design an experiment using a liquid and an additive that can be added to the liquid and observe the chemical changes in the reaction species.

one would need a beaker which is filled with a known amount of the liquid in which thermometer is placed to measure the temperature changes; after addition of the additive to the liquid solution one can note down the temperature change and find whether the reaction is endothermic or exothermic in nature. by subtracting the initial temperature value with the final temperature one can find the temperature changes.

various combinations of liquid and additive can be used. liquid in this case can be a known quantity of water and additives can be epsom salt or without epsom salt the experiment can be conducted to notice the changes. water and ice, hydrogen peroxide and dry yeast, vinegar and baking soda,etc.

give me abc and i will get it for u.