IGCSE Sciences - Co-Ordinated (0654) — May–June 2023, Paper 32
12 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Fig. 1.1 is a diagram of a flower with parts labelled A (top), B, C, D, E around it. State the letter in Fig. 1.1 that identifies the part: that attracts insects ...; that…
Answer this question and get it marked →The list gives six compounds: aluminium oxide, ammonium nitrate, carbon dioxide, lead bromide, sodium chloride, sulfur dioxide. Each may be used once, more than once or not at…
Answer this question and get it marked →A spacecraft carrying an astronaut travels 384 000 km from the Earth to the Moon in 78 hours. Calculate the average speed of the spacecraft in km / s.
Answer this question and get it marked →The number of new infections of HIV each year in one country is recorded. Fig. 4.1 is a bar chart (number of new HIV infections, years 1998–2008). Calculate the percentage…
Answer this question and get it marked →A sample of clean air is a mixture of oxygen, nitrogen and small quantities of noble gases, water vapour and carbon dioxide. State the percentage of oxygen gas and nitrogen gas in…
Answer this question and get it marked →Table 6.1 shows the audible frequency range of five animals (highest/lowest frequency in Hz): bat 200000/2000, dog 50000/50, elephant 12000/5, rat 76000/200, whale 123000/1000.…
Answer this question and get it marked →A school investigates variation in one class. Define the term variation.
Answer this question and get it marked →Fig. 8.1 shows the separation of petroleum into useful fractions; only two fractions are shown (refinery gas at 50 °C, diesel oil at 400 °C). Petroleum is a fossil fuel. State the…
Answer this question and get it marked →Fig. 9.1 shows an electric circuit with two filament lamps X and Y in series, ammeter A1 and ammeter A2. When the switch is closed, ammeter A2 shows a reading of 0.6 A. State the…
Answer this question and get it marked →Fig. 10.1 represents the concentration of oxygen molecules outside and inside a cell (more oxygen molecules outside the cell, part X is the boundary). On Fig. 10.1, draw one arrow…
Answer this question and get it marked →An atom of calcium has 20 protons and 20 neutrons. State the number of electrons in this calcium atom.
Answer this question and get it marked →An oil tanker is carrying petroleum, a non-renewable energy source. Identify the energy sources in Table 12.1 as renewable or non-renewable by placing a tick for each one (one…
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