Endothermic VS Exothermic

This week in science we learned about exothermic vs endothermic. I learned a lot about it. I learned that exothermic means heat exiting. Then, I learned that endothermic means heat entering. I also learned that a good way to memorize it is exo-exit endo-enter. For example, hand warmers, they produce heat. that would be exothermic. An example of endothermic would be a melting ice cube.

I think that I will probably think about this in my everyday life. It was really fun to learn about all the things that exothermic and endothermic work for. It was also just fun to learn about it. Like the video, we watched about it. I think I participated well because it was something that interested me. If I could’ve done something differently I would have written down some things about it. My three questions are, what is it called when something is neither endothermic or exothermic? Another question is, who invented these words? My last question is, When were these words first used?

 

 

 

 

 

 

 

 

 

 

 

 

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Ice Cream

This week in science we made icecream. We put milk and sugar into a bag. Then we put another bag over that. After we did that we filled a gallon-sized bag with snow and a bit of ice cream salt. To mix it up and freeze it, we tossed it to our team members. after we finished we went inside and checked it. It wasn’t cold enough so we stuck our cups of ice cream in a snowbank and then ate them.

I found this very fun. I may do this again at home. It was really fun to toss the bag back and forth. It was also fun to see what it tasted like. I learned that there are much more fun ways to make ice cream than using an ice cream machine. I also learned that there are types of salt just for making ice cream. I think I participated well because it was something I enjoyed doing. If I could’ve done something differently I would’ve left the bag in the snowbank longer so it could’ve frozen better. My three questions are, Is this a common method, Can you add fresh fruit to the milk to color the ice cream, and was this your idea?