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GCSE Chemistry > Experiment Quality > Flashcards

Experiment Quality Flashcards

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1
Q

How do you increase the reliability of an experiment?

A

Repeat measurements - calculate mean.

Repeat three times.

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2
Q

How do you increase the validity of an experiment?

A

Keep control variables

Use a control experiment

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3
Q

How do you increase the safety of an experiment?

A

Gloves, goggles

If using a Bunsen burner - heat proof mat

If working with chemicals giving off harmful gases - fume cupboard

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4
Q

How do you increase the accuracy/precision of an experiment?

A

Measure with small increments

Measure exact amounts
E.g. amount of gas, rather than number of bubbles

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GCSE Chemistry (18 decks)

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