Atoms and Their Masses

Are atoms too small to be isolated? Answer this question and more as you provide young chemists with the tools to conduct a hands-on activity demonstrating atomic mass. Pupils explore the mass of copper and aluminum, compare Dalton's historical experiment to those of modern-day scientists, and witness single displacement reactions as they complete a series of steps to form a chemical compound. 

79 Views 63 Downloads NGSS: Adaptable
Instructional Ideas

  • Take the experiment one step further and perform a double displacement reaction upon conclusion of the first activity
Classroom Considerations

  • Class members should have prior knowledge of balance operation
  • Ensure safety precautions are in place, and make certain all chemical spills are cleaned immediately
  • This is the third installment in a 9-part series
Pros

  • Ability to engage multiple learners through tactile use of weighing chemicals on scientific balance and relating this to important concepts
  • Detailed steps provide a way for each pupil to work independently, if this is a chosen method, for the duration of the activity
Cons

  • Document permissions do not allow for printing