Energy in Reactions

Exothermic and Endothermic: re-cap and practical uses.

Task 1: Research about these two devices below. Make notes about how they work, what reaction is occurring, what are the reactants and products, is it exo- or endo- thermic. Produce the correct exo- or endo- thermic graph for the reaction and include diagrams of how the product works.

Self-Heating Coffee Can

Self-Cooling Ice Pack

Task 2: Pit-Stop. Check your understanding of exothermic and endothermic reactions.

Ok, ready? Let's try the questions:

Task 3: Now you’re an expert on exo- and endo- thermic reactions and you have found out about the self-heating can and the cool pack….

...Enter the Dragon’s den. Watch this video to get an idea of what Dragon's Den is:

An entrepreneur pitches their invention/idea to the Dragons (business men and women with the capital/money to help start up a new business for the entrepreneur). The Dragons decide whether the product is worth their investment.

What you must do is choose whether you want to sell your self-heating coffee can idea of your self-cooling ice pack idea. See the diagram below to find out what tasks you must do:  

Need some help? Use the 2 diagrams below to give you some advice/info/ideas:

Task 4: Copy each definition, below, and add what key word is being defined:

Task 5: see image below:

Task 6: Read each method and decide whether the results collected would show an exothermic or endothermic reaction. For a bonus mark can you name what type of reaction is occurring?

Extension: Task 7: Make a one page revision summary of exothermic and endothermic reactions.