P5 Science SA1 2025 — St Hildas

Which of the following statements about the human reproductive system is correct?

Which one of the following characteristics is not passed on from the parents to their offspring?

The diagram below shows the female and male reproductive systems in humans. Which of the following shows the correct function of the above parts, E, F, G and H?

Which of the following statements about fertilisation in humans is false?

Malory was at the top of a hill. She ran down the hill for five minutes and then continued to walk slowly for another five minutes. Which of the following graphs shows Malory's breathing rate when she carried out these activities?

During an emergency exercise in a school, the windows and door of a classroom had to be closed and sealed with plastic sheets. All the fans had to be turned off. 40 students and one teacher stayed in the classroom for 30 minutes. Which of the following shows the likely changes to the amount of gases in the classroom after 30 minutes?

The diagram below shows how blood flows through blood vessels P to S. Which pair of blood vessels transport blood rich in oxygen?

The graph below shows the amount of carbon dioxide in four blood samples, A, B, C and D, taken from different blood vessels in the circulatory system. The diagram below shows how blood flow in some parts of the human body. Which blood sample, A, B, C or D is most likely to be taken from blood vessel Y?

The diagram below shows a rice cooker with rice that had just been cooked. When the lid was opened, a white cloud was formed above the rice cooker. Which of the following correctly identifies the state of the white cloud and how it is formed?

The diagram below shows how water changes its state through processes A, B, C and D. Which two processes show a change in state of water due to heat loss?

Jenny heated some ice cubes in a beaker using a burner. After 10 minutes, all the ice melted. After another 10 minutes, the water started to boil. She then turned off the burner 10 minutes after the water started to boil. Which of the following graphs correctly shows the results of Jenny's experiment?

Putera conducted an experiment to find out how the amount of exposed surface area affects the rate of evaporation. He prepared four set-ups, P, Q, R and S using beakers filled with water and placed them at a basketball court. The conditions of each set-up are as shown below. Which two set-ups should Putera use to ensure a fair test?

The diagram below shows the human female reproductive system. (a) In the diagram above, label and name the part(s) in which a baby develops. [1] (b) Name the parts of the human reproductive system that produce the sperm. [1] The diagram below shows part X of the female reproductive system which was damaged. (c) Can fertilisation still take place? Explain your answer. [1]

A terrarium was created by adding garden soil, plant and water in a sealed bottle as shown below. The bottle was placed near a window. Water droplets was observed forming along the inner surface of the bottle. (a) Explain how the water droplets were formed on the inner surface of the bottle. [2] (b) Explain how the plants inside the sealed bottle could get water even though no additional water was added? [1] (c) It was observed that the water droplets on the inner surface of the bottle disappeared after the bottle seal was removed. Explain why. [1]

The diagram below shows the human respiratory system. (a) Name the parts A, B and C of the respiratory system. Write your answers in the boxes above. [1] (b) State one difference between the respiratory system of a human and a fish. [1] When Joseph had an asthma attack, the air tubes in his lungs became smaller as shown in Diagram 2. During the asthma attack, Joseph breathed heavily, and his breathing rate increased. (c) Explain why Joseph's breathing rate increased during an asthma attack. [2]