Cold+Pack+Experiment


 * || Kuba || Ayrton || Archie || Ben ||
 * What were the main things you observed during the experiment? || the bag inflated because of the gas inside the bag mine kept on inflating and my bag popped.

the bag was really cold because of the bi-carb soda, citric acid and water reacting || That the cold pack would freeze straight away and go sloppy Which it did but for it to work it needed Bicarb and the citric acid Plus water to make the reaction work. ||  || I observed that when you put the water in it bubbles and it looks like it going to explode because when you close it fills up and it gave off a gas. || and citric acid which one’s called PH over 7 and the other means Ph under 7 ||   || Citric acid is an acid and bicarb soda is a base because everything over 7 (neutral) is a base and everything under 7 is an acid. || and when mixed it makes a reaction called endothermic. This makes it turn colder and gradually get even colder. ||  || The bicarb soda and the citric acid made a reaction and the water mixed with it to make to make another reaction to make the whole thing go cold. || And neutral I never knew neutral was in chemistry. ||  || That if anything is under 7 it is a acid & everything over 7 is a neutral. ||
 * What is the chemical difference between Citric Acid and Bicarb Soda? ||  ||  One was alkaline and the other one was base bicarb is the base
 * Why did the product turn cold? || the citric acid water and bi-carb soda made a reaction || The citric acid and the bicarb made a reaction but it needed water
 * Name one scientific fact you learnt. ||  ||  Probably endothermic I have never heard a word like that.


 * || Bryn || Jacques || Spain the coldpark was so cold and it nealy pored || Lloyd ||
 * What were the main things you observed during the experiment? ||  ||  1. Well the mean things that I now is it bubbled it went cold and the bag extended  ||   ||   ||
 * What is the chemical difference between Citric Acid and Bicarb Soda? ||  ||  2. The citric acid is an acid and the bicarb soda is a base the bicarb soda is over 7 and citric acid is under 7  || how the cold park went all hard and it nealy popeed and it was the colsses thing i never sesn well cind of. ||   ||
 * Why did the product turn cold? ||  || 3.all the ingredients like the bicarb soda the citric acid and the water make a reaction || becouse the acid hade very sstrong prahser.andthat way if poped. ||   ||
 * Name one scientific fact you learnt. ||  ||  4.that the acid is under 7 and a base  || acid and flaer. ||   ||


 * || Luke || Cale ||
 * What were the main things you observed during the experiment? || It was really cold the bag started to get filled with air it started to bubble up  ||   ||
 * What is the chemical difference between Citric Acid and Bicarb Soda? || The citric acid is lower than 7\neutral and bicarb soda is higher than 7\neutral  ||   ||
 * Why did the product turn cold? || With the bicarb soda and the citric acid and water make a reaction to turn it cold  ||   ||
 * Name one scientific fact you learnt. || That 7 is neutral and bicarb soda is the base and citric acid was an acid that didn’t melt stuff  ||   ||