Answer:
1.) Joy because I'm alive so I feel happy (You can say something like that)
2.) There made by whatever memories are made. There memories balls so they are made from memories. (You can say: My favorite memory is when i went to the park for my very first time)
3.) When sadness touch a memories she made it turn very sad, hence the name sadness. I would yes it is possible to a certain point. Our memories can change say for instance, I go to the park and I had a great time. But your mom 2 days later says that you bumped your head on the slide and you had to go to the hospital, but you didn't remember all of that. you just remembered having fun. That can change your memory from making it happy from sad. But that is just an example.
4.) Parents can say the smallest things and it can trigger a kids mind. I dont know how to feel about that though. But, I know that putting on that happy but your really sad is not a good thing. If she or he is really sad dont front and make it seem like your happy.
