Question | Answer |
What is the definition of prediction? | To make a forecast. |
What is the definition of classify? | Group by similar charateristics. |
Define inference? | A possible explanation or guess about an observation. |
What is communication? | Telling others what you know. |
What is an observation? | Recognizing and noting some FACTS to gather information about the world. Observations must be specific and accurate so it means the same to everyone. |
What do scientists do? | Scientists make sense of nature and improve our world through observations & experiments. |
How do you make observations? | By using your 5 senses. (see, touch, taste, listen, smell.) |
What 2 kind of observations are there? | Qualitative and Quantitive. |
What is a Quantitative observation? | Factual descriptions that do use numbers. |
What is a Qualitative observation? | Factual descriptions that do NOT use numbers. |
Who uses the Metric system? | Scientists use the SI or Metric units of measurements. |
Why is the Metric system used? | It is easy to convert from one unit to another by just moving the decimal since the Metric system is base ten. |
What is an Observational Investigation? | A lab (investigation) when changes are being observed. |
What is an Experimental Observation? | A lab (investigation) when the hypothesis is being tested. |
What is a hypothesis? | It is an educated guess. |
What is an Independent Variable? | An independent variable is the manipulated variable in an experiment. (changes) |
What is a Dependent Variable? | It is the change that responds to the independent variable. This change is the data collected. |
What is a constant? | It is the factor that MUST stay the same in order for the experiment to be a fair test. The experimenter may only change one variable-the i.v.- while other factors must remain the same. |
What is a control? | It is a standard of comparison. |
What is the definition of a Fair Test? | An experiment that changes only one factor. |
What are repeated trials? | That is when you complete an experiment many times. This is done to make the experiment a fair test. |