| A | B | 
|---|
| Physical property | a description of how things look and/or feel | 
| Observation | the use of one or more of the five senses to gather information; Complete observations make use of all the senses. | 
| Simple experiment | an experiment that changes only one thing at a time, gives quick results, and provides easily observed changes | 
| Effect | the result in an experiment | 
| Data | information that is gathered in a systematic way | 
| Collect data | to gather information during an investigation | 
| Inference | an answer based on evidence | 
| Predict | to guess what is expected to happen | 
| Hypothesis | an idea that can be tested by experiment or observation | 
| Investigate | to gather, collect, and analyze data | 
| Classify | to group or order objects | 
| Sequence | one thing after another in order | 
| Communicate | to give or exchange information |