IGCSE Sciences - Co-Ordinated (0654) — May–June 2023, Paper 52
7 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →You investigate the effect of plants and animals on their aqueous environment. A sample of water W is provided. Add a few drops of hydrogencarbonate indicator to the sample of…
Answer this question and get it marked →You investigate three nutrient solutions D, E and F. Add about 1 cm depth of Benedict's solution to each test-tube D, E and F and place them in a hot water-bath for at least 3…
Answer this question and get it marked →The seeds of a sycamore tree have 'wings' to help carry them in the wind. Plan an investigation to determine the relationship between the vertical height the seeds fall from and…
Answer this question and get it marked →You investigate the rate of reaction between solutions H and K. When H, K and starch are mixed, a blue-black colour appears after a time. Procedure: add 4 cm3 of solution H to a…
Answer this question and get it marked →You identify solution L and solution M. Add 2 cm depth of each solution into four test-tubes and carry out the tests in Table 5.1, recording observations for L and M: add a few…
Answer this question and get it marked →You measure the mass M of an object using a balancing method. The object is fixed with its centre over the 15.0 cm mark. Place the pivot directly under the 50.0 cm mark, place a…
Answer this question and get it marked →You investigate the image formed by a convex lens (Fig. 7.1: lamp, illuminated object, convex lens in holder, screen; object distance u, image distance v). Place the lens a…
Answer this question and get it marked →