P6 Science CA1 2025 — Methodist Girls

The diagram shows a leaf cell with parts labelled 1 to 4. Which part uses sunlight to make food?

Which of the following shows the correct direction of food that is taken through the mouth?

The diagram shows how water and substance P flow through different parts, A, B, C and M of a plant. What do A, B and C represent?

Fizah wrote some statements about humans, fish and plants. A The lungs and gills are part of the circulatory system. B Oxygen and carbon dioxide are carried by the blood in humans and fish. C Gaseous exchange takes place at the lungs, gills and stomata (tiny openings in leaves). Which of her statement(s) is/are correct?

Lisa cut the lower stem of a white flower into two equal parts. She placed them into containers with different coloured water as shown. After a short time, she observed that some parts of the flower turned red, some turned yellow, while the rest remained white. Lisa made four statements. A The food made by the plant was red and yellow in colour. B The stem transported the different coloured water to the flower. C No coloured water was transported to the flower parts that remained white. D There were no water tubes in the flower parts that remained white. Which statements can be concluded from her observations?

Which statement about the human digestive system is correct?

Aidan predicted the greater the amount of carbon dioxide in a tower, the fewer the number of tiny openings called stomata found in a plant. Which of the following supports his prediction? [Each option is a bar chart with x-axis 'number of cars passing through in 1 hour' (0–5, 6–20, more than 20) — used as a proxy for carbon dioxide — and y-axis 'number of stomata'. (1) bars: low, high, low. (2) bars: low, medium, high. (3) bars: high, low, high. (4) bars: high, high, low (decreasing trend — fewer stomata as cars/CO₂ increase).]

The diagram shows a plant cell. Which parts are also found in an animal cell?

The table shows the types of gases in air that are taken in and given out by a human. Based on the information given, which statement is not correct?

Blood flows through blood vessels A to D as shown. Which blood vessels transport blood richer in oxygen?

Ken has two identical pots of plant P. He placed one plant in a room at 30 °C and the other at 40 °C. On each plant, he clipped dry pieces of a type of paper to the upper and lower surfaces of a leaf as shown. The paper turns pink when wet. The graph shows the time taken for the paper to turn pink. [Bar chart: at 30 °C lower-surface paper turned pink in a shorter time than upper-surface paper; at 40 °C both turned pink faster than at 30 °C, with the lower-surface paper still faster than the upper-surface paper.] Based on the graph, which statement is a correct conclusion?

Kim cut a root into pieces of the same size. She placed each piece into a glass tube. Each tube was kept at a different temperature. The root cells contained a red substance. After some time, Kim observed the colour of the water in the tubes. The table shows her results. [Table: 5 °C → light pink; 20 °C → pink; 40 °C → dark pink.] Which of the following explains her observation?

Which gases are found in air? A oxygen B nitrogen C carbon dioxide D water vapour

Study the diagram. Which arrows show the correct direction in which water moves in a plant?

Substances are obtained from the water-carrying tubes and food-carrying tubes of a plant on a sunny day. Which of the following is correct?

A and B are similar beakers containing the same volume of digestive juices. Equal amounts of potato are placed in the beakers. The potato in beaker B took a longer time to digest because it has a _______.

The diagram shows a human body system. (a) Identify the system and state the function of this system. [2] (b) Name Y. [1] (c) Other than Y, name another two parts of this system. [1]

Ravi wanted to investigate the conditions needed for leaf growth using three types of soil. Four pots of identical plants were placed in the same area within a garden. The diagram shows the four pots of plants after two weeks. (a) State which pots must be compared to conclude about the effect of each variable on leaf growth. [2] Variable — Pots to compare: Type of soil / Availability of water Ravi conducted a second experiment to find how the amount of fertiliser affects leaf growth. He conducted a fair test, planting the same number of plants in five big pots, V, W, X, Y and Z. The pots are filled with garden soil. The results of his experiment are as shown. [Table: V 0 g → 20 cm²; W 5 g → 30 cm²; X 10 g → 36 cm²; Y 15 g → 20 cm²; Z 20 g → 14 cm².] (b) What can Ravi conclude about the effect of fertiliser on leaf growth? [2] (c) Explain why the results of Ravi's second experiment cannot be used to improve the leaf growth in pot S from his first experiment. [1]

The diagram shows how substances are transported in a plant. P and Q represent different parts of the plant. The arrows represent the movement of substances G and H. (a) Identify parts P and Q. [1] (b) Identify substances represented by H and describe how these substances move in the plant. [2]

The diagram shows a plant cell. (a) Name parts R and S. [1] (b) State the functions of parts P and Q. [2]

(a) State the function of the human respiratory system. Include in your answer the gases involved. [1] (b) Name three parts found in the human respiratory system. [1] (c) Describe how the respiratory system works together with the circulatory system in our body. [2]

Ali ate a bowl of rice. Rice is digested into sugar. After three hours, the doctor measured the amount of sugar in different parts of the small intestine. The chart shows the amount of sugar at various parts of the small intestine. [Bar chart: Q — small bar; R — tallest bar; S — almost zero.] (a) The amount of sugar increased from Q and R. Explain why. [1] (b) The amount of sugar decreased from R and S. Explain why. [1] (c) Undigested food enters an organ after leaving the small intestine. Name this organ and state its main function. [1]