Biology Practicals O Level

If a ruler measures in millimeters, don't record your data in centimeters unless asked. If you are timing something, record it to the nearest second. Consistency is key. Identifying Sources of Error

When asked to describe a trend:

If asked to plan an investigation, include: biology practicals o level

: Testing a green leaf for starch after boiling it in alcohol to demonstrate the necessity of light or chlorophyll. If a ruler measures in millimeters, don't record

Success in the practical exam depends on mastering these specific competencies: Mastering Biology practicals: Tips for success - Geniebook If a ruler measures in millimeters