IGCSE Sciences - Co-Ordinated (0654) — October–November 2023, Paper 32

Fig. 1.1 is a diagram of a marine food web showing orca, leopard seal, krill, arctic cod and phytoplankton. Table 1.1 shows terms used to describe the organisms in Fig. 1.1. Place…

Chlorine, bromine and iodine are halogens in Group VII of the Periodic Table. Some of these statements about the halogens are correct and some are incorrect. Place a tick in the…

Fig. 3.1 shows a stationary car. Part of each tyre is in contact with the road. State the two quantities needed to calculate the pressure exerted by the car on the road.

Polydactyly is a condition that results in the growth of extra fingers or toes. The allele for polydactyly is dominant D. The allele for no polydactyly is recessive d. Table 4.1…

A student investigates the rate of reaction between calcium carbonate and hydrochloric acid. The student does the experiment four times and each time uses the same mass of calcium…

Fig. 6.1 shows how the energy transfers in a television when 100 J of electrical energy are supplied: electrical 100 J input; thermal 30 J; light 65 J; sound (unknown). Calculate…

Fig. 7.1 is a diagram of the alimentary canal and associated organs, with parts labelled A, B, C, D, E, F, G, H. Identify the letter in Fig. 7.1 that represents the part: where…

Aluminium is obtained from its ore. Aluminium ore is a finite resource, so conserving aluminium is important. Explain what is meant by the term finite resource.

State which animals from Table 9.1 can hear sounds with a pitch higher than a rat can hear. Explain your answer.

Fig. 10.1 is a diagram of the gas exchange system in humans, with parts labelled A, B and C. State the names of the parts labelled A, B and C in Fig. 10.1.

Methane, CH4, is the main constituent of a fossil fuel. State the name of this fossil fuel.

Fig. 12.1 shows a refrigerator with a freezing compartment. The refrigerator uses electrical energy to power the electric motor which operates the cooler and to light the lamp…