IGCSE Science - Combined (0653) — October–November 2023, Paper 61
4 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →A student investigates the effect of an enzyme used in the large-scale production of apple juice. Apple puree is added to test-tubes E and W; 10 cm3 of enzyme is added to E and 10…
Answer this question and get it marked →When magnesium ribbon is added to dilute hydrochloric acid, the mixture fizzes and makes hydrogen gas. State the test used to confirm the presence of hydrogen gas and give the…
Answer this question and get it marked →A student investigates the reflection of light by a plane mirror. Fig. 3.1 shows a horizontal line XZ. Line NY is the normal to line XZ at point Y. Line AY meets line XZ at point…
Answer this question and get it marked →Plan an investigation to determine the relationship between the temperature of apple juice and the time it takes for ice cubes to melt when added to it. You are provided with: ice…
Answer this question and get it marked →← October–November 2023 Paper 62 · October–November 2023 Paper 51 →