Unit 1 Section A Summary HW Problems Pt. 4

#18:
An inference is an educated guess.

#19:
a. Observation
b. Inference
c. Inference
d. Observation
e. Observation
f. Inference

#20:
It is important to organize laboratory observations so that the group can keep track of what reacted with what, and record exactly what happened during their lab.

#21:
It is necessary to read an entire investigation before beginning laboratory work so that you know exactly what you are doing. This is also for the safety of you and the ones working with you.

#22:

#23:

#24:

#25:

#26:

When a model has limitations, it means that it isn't capable of showing the entire picture.  It only shows one small segment of what it is portraying.