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Scientific Inv.
| Question | Answer |
|---|---|
| What are the five basic steps of scientific investigation in order? | 1.Forming a hypothesis 2.Testing a hypothesis 3.Collect data 4.Interpreting data 5.Communicating results |
| What is a hypothesis? | A possible explanation or tentative answer to the question. |
| What do scientist design to test hypotheses? | Experiments |
| All factors that can change in an experiment is called what? | Variables |
| A controlled experiment is what? | An experiment in which only one variable is changed at a time. |
| What are some tools commonly used by scientists? | Balance, graduated cylinder, microscope, spring scale, thermometer, and a test tube. |
| Scientists use tables, graphs, and charts for what? | To organize, interpret, and present data. |
| Why do scientists communicate there results? | To help learn from each other |
| The variable that is changed on purpose is called the what? | The manipulated variable or the independent variable. |
| Manipulated variables are also called what? | Independent variables |
| What may change in the response of the manipulated variable? | The responding variable |
| Responding variables are also called what? | The dependent variable |
| All of the other variables or factors are called what? | Controlled variables or constants |
| What are a few ways you can collect data? | -observing -measuring or counting -asking questions -performing an experiment |
| What is organizing data efficiently? | A small space that allows a lot of information to be presented in a small space using tables. |
| Once information has been collected it should be what? | Interpreted |
| Graphs are used for what? | Present information visually |
| Circle graphs are best used for what? | To show how a whole is divided in parts or percentages in 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? |
| The longer the bar in bar graphs the? | The greater the amount of the object or frequency of the event. |
| Line graphs are best used to? | To show a relationship between two measured quantities usually a trend over time. |
| The independent variable is placed where? | On the x-axis |
| The dependent variable is placed where? | On the y-axis |
| The dependent variable corresponds with the what? | The independent variable |
| Line graphs are often used for what? | To see trends over time |
Created by:
rodneymcgilveary
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