experience: noun meaning something that a person lives through, i.e. something that someone experiences. - also used as an uncountable noun meaning 'knowledge gained by doing something'
experience：
1.名词，表示一个人经历过的事情，比如可以说something that someone experiences.
2.不可数名词，表示做什么事情后得到的知识。其实就是一个人的经历、经验。
Examples:
例句：
(first meaning)His experiences in Germany were rather depressing.
(second meaning) I'm afraid I don't have much sales experience.
(第一种意思)他在德国的经历非常郁闷。
(第二种意思)恐怕我没什么销售经验。
experiment: noun meaning something that you do to see the result. Often used when speaking about scientists and their studies.
experiment：名词，意思是做一些事情看结果，通常用来说科学家和他们的学生。其实意思就是实验、试验。
Examples:
例句：
They did a number of experiments last week.
Don't worry it's just an experiment. I'm not going to keep my beard.
上周他们做了很多实验。
别担心，就是试验一下，我不会留胡子的。