Ileana demonstrating how to use a triple-beam balance to weigh a Bess beetle.
Amanda and kids looking on as their Bess beetle pulls a dish of pennies.
Caleb showing kids how to use a triple-beam balance.
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Ileana demonstrating how to use a triple-beam balance to weigh a Bess beetle. | |
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Amanda and kids looking on as their Bess beetle pulls a dish of pennies. | |
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Caleb showing kids how to use a triple-beam balance. |