most basic and fundamental of the process skills. One cannot compare, classify or perform the other process skills without being a good observer. We observe objects or events through our five senses: sight, smell, touch, taste and hearing.
Comparing is using observable properties in discovering similarities of and differences between objects and phenomena. Through comparison, we are able to identify relationships among objects and phenomena observed.
There is an overwhelming number of things around us – nonliving and living things. Order can be attained by observing similarities, differences and interrelationships and by grouping them accordingly to suit some purpose.
Example: Placing all rocks having certain grain size or hardness into one group.
Predicting is the process of using past observations or data along with other kinds of scientific knowledge to forecast event or relationships. A statement not based on observation is not a prediction. It is simply a guess.
Interpolation – is predicting new data based on and within a trend/ pattern of previously observed data.
Extrapolation - is predicting new data outside or beyond the range of previously observed data.