: You must memorize these, as instructions aren't always provided. Reducing Sugars
Multiply the number of graticule units measured on your specimen by this calibrated value to find the real size. 5. Data Presentation and Graphing Rules Constructing Tables Draw full boundary lines around your table using a ruler.
Assign the Independent Variable to the X-axis and the Dependent Variable to the Y-axis. Label both axes clearly with names and units. biology 9700 practical notes
The next morning, in the lab, the timer started. Zara didn't panic. She opened her practical notes—not to read, but to remember .
Guide to A-Level Biology (9700) Practical Skills Success in the CAIE Biology 9700 practical component (Paper 3) isn't just about knowing facts—it’s about demonstrating precision, following instructions to the letter, and understanding the "why" behind the "how." 1. The Core Skill Sets : You must memorize these, as instructions aren't
Use a sharp pencil. Points must be plotted accurately as small crosses (
Record all raw data measurements to the same number of decimal places or significant figures. Graph Plotting Rules The next morning, in the lab, the timer started
Common improvements include using a gas syringe to measure gas volume instead of counting bubbles, using a digital colorimeter, or conducting replicates to calculate a mean. 6. Tips for Success in 2026
Examiners heavily penalize students who confuse "errors" with "mistakes." A mistake is spilling a solution. An error is an inherent limitation of the apparatus or procedure. Calculating Percentage Uncertainty