This experiment has two parts. For the first half, you will mix two chemicals that will produce heat and gas. The temperature receptors in your skin will be able to detect the heat. Your ears will detect the gas at it vibrates and escapes its container.
In the second portion you will demonstrate a characteristic in a chemical reaction. For this experiment, it will be an endothermic reaction, which is the absorption of heat energy. This type of reaction is easy to notice because it makes things cold to touch. The chemical you will be using, ammonium nitrate, is actually used in emergency cold packs.
Please login or register to read the rest of this content.
Yes you can use Epsom salts and this experiment to do the same thing (detecting temperature):
https://www.sciencelearningspace2.com/2019/02/can-a-salt-be-used-for-heating-and-cooling-2/
Is there an alternative that can be used to ammonium nitrate and calcium chloride? They are both a bit pricy?