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Chem Chap 2 Sec 1
Scientific Method
| Question | Answer |
|---|---|
| The Process researchers use to carry out their investigations is called | Scientific method |
| The use of senses to obtain information | Observing |
| A logical approach to solving problems by observing and collecting data, formulating hypotheses, testing hypotheses, adn formulating theories that are supported by data | Scientific Method |
| Data that is descriptive | qualitative |
| Data that is numerical | quantitative |
| a set of particles or interacting components considered to be a distinct physical entity for the purpose of study | System |
| an explanation that is based on prior scientific research or observations and that can be tested | Hypothesis |
| a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept | Model |
| the explanation for some phenomenon that is based on observation, experimentation, and reasoning; that is supported by a large quantity of evidence; and that does not conflict with any existing experimental results or observations | theory |
| a series of steps that scientists use to answer questions and solve problems. | scientific method |
| data that describes the qualities of a material, such as color or texture. | Qualitative data |
| data taken regarding magnitude, size or amount of something. It deals with measurable quantities | Quantitative data |
| a pictorial view of the relationship between two variables | Graph |
| statements that apply to a range of information | Generalization |
| serves as a basis for making predictions and for carrying out further experiments | hypothesis |
| often drafted as “if-then” statements | hypothesis |
| During testing, the experimental conditions that remain constant | controls |
| any condition that changes | Varialbes |
| a pattern, plan, representation, or description designed to show the structure or workings of an object, system, or concept | model |
| the explanation for some phenomenon that is based on observation, experimentation, and reasoning; that is supported by a large quantity of evidence; and that does not conflict with any existing experimental results or observations | theory |
| Stages in a scientific method | Observing, Formulating Hypotheses, Testing, Theorizing, Publish results |
| True or False: A scientific method is a single, fixed process. | False. Steps are repeated many times. |
| Models are visual, verbal, or __________ | mathematical |
| matter is composed of tiny particles called atoms | atomic model of matter |
| a broad generalization that explains a body of facts or phenomena | theory |
| Theories are considered successful if they can predict what | The results of many new experiments. |