P5 Science Practice Worksheet
Time: 50 minTotal: 31 marks
Section A - Multiple Choice
A1.Which of these is NOT a role of the roots in a plant's transport system?[1]
A2.For a bulb in a simple circuit to light up, what must the circuit form?[1]
A3.What is the main function of a flower's petals?[1]
A4.During a fever, a child's heart beats faster than usual even while resting. What is one likely reason for this?[1]
A5.Ryan notices that his potted plant's soil is soaking wet, yet the plant still looks wilted. What might be happening?[1]
A6.A leaf is left in complete darkness for several weeks. Which change might a scientist expect to observe in its cells over time?[1]
A7.A toy car's series circuit (cell, switch, motor) works fine when the wheels are lifted off the ground and spun freely, but the wheels barely turn when the car is placed on a rough carpet. The bulb-style test on the same cell and wiring shows a bright, steady light. What does this tell us about the fault?[2]
A8.A group builds a series circuit with a cell, a switch, and two bulbs, one after another. Both bulbs are lit. They then remove one bulb entirely from its holder, leaving the socket empty and open. What happens, and why?[2]
Section B - Short Answer
B1.Name the organ that pumps blood around the body.[1]
B2.Explain why ice, a solid, can be changed into water, a liquid.[2]
B3.Explain why your heart beats faster when you exercise.[2]
B4.A healthy green plant is placed in a dark cupboard for two weeks. Predict what will happen to the plant and explain why.[2]
B5.A flower is prevented from being visited by any insects, and no wind reaches it. Predict what will happen to its ability to produce seeds, and explain why.[2]
B6.A student says that sugar dissolving in water is the same as ice melting in water. Explain why this is incorrect.[2]
Section C - Structured
C1.A student compares a plant cell and an animal cell under a microscope.[3]
(a)Name ONE structure found in a plant cell but not in an animal cell.[1]
(b)Explain the function of the structure you named in (a).[2]
C2.Two identical wet cloths are hung outside to dry. Cloth A is in a sunny, windy spot. Cloth B is in a shady, still spot.[3]
(a)Which cloth dries faster?[1]
(b)Explain your answer using TWO different factors.[2]
C3.A gardener waters a plant. The water is absorbed by the roots and eventually reaches the leaves, where some of it is lost to the air.[4]
(a)Inside the stem are two kinds of tiny tubes. Describe what each of the two tubes carries, and in which direction.[2]
(b)Explain why water is lost from the leaves.[2]