Reading a Triple Beam Balance
By Jill Crowder
Students identify the parts of a triple beam balance and practice measuring the mass of objects.
In this interactive and animated object, students distribute the valence electrons in simple covalent molecules with one central atom. Six rules are followed to show the bonding and nonbonding electrons in Lewis dot structures. The process is well illustrated with eight worked examples and two interactive practice problems.
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green bag has mass of 323.3 grams, says it is incorrect? What is the correct answer?
In the first problem: i cant seem to get the right answer, its always too light or too heavy
I teach 6-8 science at a middle school and we are experiancing the same problem with the correct/incorrect when the kids put the correct mass in the field it says incorrect. #frustratedstudents.
Just figured out what the problem was.