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Scientific Investiga
| Question | Answer |
|---|---|
| Scientific Investigation | Scientific method refers to a body of techniques for investigating phenomena, or acquiring new knowledge |
| How many basic steps does Scientific Investigations have? | Five |
| Hypothesis | A possible explanation for a set of observations or a possible answer to a scientific question |
| How should a hypothesis be phrased? | As a statement |
| Variables | All factors that can change in an experiment |
| Controlled Experiment | An experiment in which only one variable is changed at a time |
| What are some tools used by scientist for their experiments to collect data? | Balance, graduated cylinder, microscope, thermometer, etc. |
| What is a balance? | A tool used to measure the mass of objects |
| What is a graduated cylinder? | A beaker marked in intervals that is used to measure volume |
| What is a microscope? | A tool used to produce magnified images of small objects |
| What is a thermometer? | A tool used to measure temperature |
| What are the five basic steps of Scientific Investigations? | 1.) Forming a hypothesis 2.) Test a hypothesis 3.) Data Collection 4.) Interpreting data 5.) Communication results |
| Manipulated Variable | The variable that is purposely changed to test a hypothesis |
| Independent Variables | Manipulated variables are also called this |
| Responding Variable (dependent variable) | The factor that may change in response to the manipulated variable |
| Constant (controlled) Variable | All of the other variables or factors, besides the manipulated variable |
| Tools that scientist use to organize and present information | Tables and Graphs |
| Circle graphs are best used to show... | How a whole is divided into parts (percentages of a whole) |
| Bar graphs are best used for... | Counting and to show how a number of objects or events compare in relationship to a single property. |
| Line graphs are best used to show... | a relationship between two measured quantities, usually as a trend over time. |
| Collecting data can be done in many different ways, such as: | 1.) Observing 2.) measuring or counting 3.) asking questions 4.) performing an experiment |
| Tables allow what? | A lot of information to be presented in a small space by organizing data efficiently |
| Graphs are used to ... | Present information visually |
| Whenever a Scientist collects data that is unusual in an experiment he or she should... | Carefully go over the investigation's design to make sure that there is only one manipulated variable in the experiment |
Created by:
brittanykremer
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