Science question due tomorrow please help fast!!!?

Question

the question is

if scientific theories keep changing, where is the truth?

it is a research question please help, its due tomorrow!!!!!

Answer 1

The ruth is when a scientific theory can be applied in practise.  

Answer 2

They Change In Time Due To The Earth Changing.

Answer 3

when i look at that question i think about how scientists keep finding out new things about everything so the theories change i dont think that a theory is ever going to stay the same because we discover something new almost everyday.

Answer 4

They don't "keep changing." They do change in time, however.

Very seldom are previous theories simply discarded. Most of the time the old theories are tweaked and renewed.