Filters: Your search found 2 results.
Topics/Subjects:
The nature of science  
Resource Type:
Experiment/lab  
Instructional Strategies:
Lab procedures  
Learning Time:
30 to 45 minutes  
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This experimental activity is designed to develop an understanding that air has mass. Students conduct an investigation and observe the change in the position of a bar balancing a balloon inflated with air on one end and a uninflated balloon on the... (View More)

In this introductory classroom activity, students exercise their scientific skills of observation and deduction as they use their senses and simple laboratory assays, such as pH indicator paper, to identify mystery pollutants in water samples.... (View More)

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