An observation something that you can see touch smell etc.
An inference is an educated guess of the situation.
2. How can inferences and observations be related?
An observation can help you find an inference, like if you observe the color of something you can put that in your indifference.
3. Why are both observations and inferences important in science?
An observation is important in science because you have to observe what is happening and then you have to make your best guess on all the steps and in order to make an accurate guess you have to make an accurate observation.