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1. the action or process of observing something or someone carefully or in order to gain information.
2. two types of observations, qualitative and quantitative. Qualitative observations are made when you use your senses to observe the results. (Sight, smell, touch, taste and hear.) Quantitative observations are made with instruments such as rulers, balances, graduated cylinders, beakers, and thermometers. These results are measurable.
Observation is essential in science. Scientists use observation to collect and record data, which enables them to construct and then test hypotheses and theories. Scientists observe in many ways – with their own senses or with tools such as microscopes, scanners or transmitters to extend their vision or hearing.
Explanation:
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Answer:
1_ (6_8)
2_Tracy
3_( 11_12 doug have than sarah
4_ 4 runs fewer than Tracy
5_mark 8...patty...4
6_ mark and Doug
7_sarah and patty
8_17
9_patty_ sarah_mark_Doug_Tracy