science+fair+lit+review+AJ

What I learned is that hot water will dissolve the Alka seltzer faster than cold and room temp water. The hot water made the tablet dissolve faster because the hot water made molecules in the tablet move faster and the tablet dissolved. The warm water had hot and cold water inside a cup so the tablet didn't dissolve fast but a little slow. The cold water took the tablet a long time to dissolve the tablet. When the tablet dissolves it spreads and when you look at the top of the cup when the tablet is in it starts to fizz like a soda.

Alka seltzers are made up of aspirin, citric acid, and sodium bicarbonate. It is used for

Works Cited

"Can You Change the Speed of a Reaction by Changing the Particle Size of the Reactants?"Education.com. N.p., n.d. Web. 21 Oct. 2013. <[]>.
 * It is an accurate/valid website because the people who work there know what they are doing and they are engineers and study a lot about this topic. Alka Seltzer contains citric acid and sodium bicarbonate.

"The Effect of Temperature on Reaction Rates." - Chemwiki. N.p., n.d. Web. 21 Oct. 2013. <[]>.
 * This is another accurate website because professors and scientists from a college developed the site based on their experiments. The graphs indicate how temperature affects reaction rates

"Understanding Chemistry - About This Site." Understanding Chemistry - About This Site. N.p., n.d. Web. 07 Oct. 2013. <[]>.
 * This is an accurate site because it helps children learn about the science concept ,and it is designed to match the syllabi of middle school and high school students in the U K.