What you change (e.g., concentration). Dependent Variable: What you measure (e.g., volume of gas).
Aim for 50 minutes per question. If a microscope slide is giving you trouble, move to the calculation/theory part of the question. biology 9700 practical notes
What you keep the same (e.g., temperature, pH). Experimental Errors: Systematic: Faulty equipment (e.g., a thermometer that is 2∘2 raised to the composed with power What you change (e
Mix sample with ethanol, then add water. Positive result: Cloudy white emulsion. 📉 Core Skill 3: Data Presentation and Analysis If a microscope slide is giving you trouble,
The microscope is a staple of the 9700 syllabus. You must be comfortable with both low and high-power lenses. Always remember the formula: Plan Diagrams: Do not draw individual cells. Use clear, sharp, continuous lines.
Contamination is the number one cause of "weird" results. Check your units: Are you measuring in cm3c m cubed mm3m m cubed ? Converting correctly is vital.