criterion for grouping material
Answers
Answer:
SORTING MATERIALS INTO GROUPS
All things are made of one or more materials.
Same things can be made from different types of materials.
It may be man-made or naturally occurring.
Materials occupy space.
Materials have mass.
Materials can be classified on the basis of many criteria.
Materials can be classified on the basis of physical state; as solid, liquid and gas.
Explanation:
Science seeks to understand and explain natural phenomena. Scientists understand things by classifying them. This pertains to living creatures as well as non-living materials.
Non-living materials can be classified into groups depending on contrasting properties. If students have made lists in their Science Journals of the properties of various materials and items they have studied, they can use these lists to extend their knowledge and information about the materials they are studying.
Materials can be sorted or classified by various contrasting properties. Some examples are as follows.
metals vs non-metals
rocks vs non-rocks
visible crystals vs absence of visible crystals
natural vs artificial
denser than water or less dense than water
magnetic vs non-magnetic
state at room temperature (solid, liquid, gas)
other aspects of the composition of the article