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GCSE Combined Science · key term
Setting a balance to zero, often with an empty container on it, so that the mass of the container is excluded from the next reading.
Used by OCR
Specification WS1.2c · Biology Paper 1, Biology Paper 2, Chemistry Paper 1, Chemistry Paper 2, Physics Paper 1, Physics Paper 2
Revise: Selection of Apparatus and TechniquesPlace an empty weighing container on the balance and tare it before adding the substance. Wait until the display settles before recording the mass. This gives the mass of the substance rather than the substance plus its container.
Specification B1 · Biology, Chemistry, Physics, Combined Science
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Setting a balance to zero with an empty container on it, so that the subsequent reading gives the mass of its contents.
Place an empty container on the balance and tare it before adding the sample. This removes the container's mass from the reading. Wait until the display settles before recording the value.
