IGCSE Exam Tips.

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Presentation transcript:

IGCSE Exam Tips

CORMS Compare. What are you comparing in the experiment ? Location / distance / rate / light intensity / temperatures Organism. what are you going to study? species / gender / size / age / breed / health Repeat. three times

Measure. What are you going to measure? mass / length / count number / collect gas STATE THE TIME PERIOD ( seconds / minutes / hours / days) Same. All the things you must keep the same. Specified concentrations: mass / volume / times / age / gender

Slap u scale linear and half the graph paper used lines Neat and through the points (ruler)

Axes the correct way round and labelled Points correctly plotted Units (ml) / (°c) / (S) / (g) etc

The thing you are measuring / recording dependent variable: The thing you are measuring / recording

Independent variable: The thing you are changing

Independent variable: is the first (left hand) column in a table Goes on the X-axis is the first (left hand) column in a table

dependent variable: Goes on the y-axis

To make an experiment more accurate you change the measuring equipment to get closer to the true value

To make an experiment more reliable repeat 3 times

Increase the Temperature More kinetic energy More collisions More enzyme activity More respiration / photosynthesis