Presentation on theme: "Objectives Make qualitative and quantitative observations"— Presentation transcript:
1 Objectives 11-13 11 -Make qualitative and quantitative observations 12 - Distinguish between an observation and an inference13 -Distinguish between an independent and dependent variable
2 Types of Observations Quantitative - notes how many. 5 days, 6 legs, 10 fingersQualitative - description other than a number.color, taste smell
3 Observation vs. Inference Observation - act of noticing somethingInference - conclusion based on an observation
4 Example of an Inference Observationsit has six legsit is greenit has three body partsit has 2 wings
5 Example of an Inference Observationsit has six legsit is smallit has three body partsit has 2 wingsinference = It is an insect
6 Dependent vs. Independent Variables and Controls Control-unaltered part of the experiment used as a standard for comparisonVariable- A quantity or quality that is subject to changeIndependent variable-variable that is manipulated in an experimentDependent variable-variable affected by the independent variable
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