请问in order that和so that在意义和用法上有区别吗？

so that 后接从句，如;I get up early so that I can catch the early bus.
in order to 后接动词，即in order to 中的to 是不定式标志，如：I get up early in order to catch the early bus.

意思上一样
但是so that 可以分开！

意思差不多,都是"为了....",in order to加不定式,so that加目的状语从句.
so....(加形容词) that加从句是表程度结果从句:
I am so tired that I cannot walk any more.---我太累了,无法再走了

意思上一样
但是so that 可以分开！