Biology 9700 Practical Notes Jun 2026

Plot the independent variable on the x-axis and the dependent variable on the y-axis. Label both axes clearly with units, matching your table headers.

The independent variable always goes in the left column. All columns must have clear headings and units (e.g., /

Identify hazards (e.g., chemicals) and precautions (e.g., safety goggles). B. Evaluating Experiments

Align the zero lines of both the stage micrometer and the eyepiece graticule. biology 9700 practical notes

Initial rate of reaction (e.g., volume of gas produced per minute, or time taken for a substrate solution to turn clear).

This comprehensive guide compiles essential practical notes, core techniques, and exam strategies to help you excel in your biology practicals. 1. Core Mathematical and Data Skills

. If you need to make a 1% solution from a 10% stock, you use 1 part stock to 9 parts distilled water. Microscopy: Plot the independent variable on the x-axis and

from tube 1 to tube 2 and mix thoroughly. (Tube 2 is now 5%). Transfer 10 cm3cm cubed from tube 2 to tube 3 and mix. (Tube 3 is now 2.5%). Repeat the process across the remaining tubes. 6. High-Scoring Data Presentation Drawing Rules for Biological Diagrams

If you can tell me (e.g., enzyme practicals, microscopy, or experiment planning) you want more detailed notes on, I can provide a more in-depth guide with worked examples.

Keep this checklist on your phone or desk:

Factors that must be kept constant to ensure a fair test (e.g., enzyme volume, constant incubation temperatures).

If the initial Benedict's test is negative, heat a fresh sample with dilute hydrochloric acid (