Photosynthesis resources

Students explain the function of the veins, waxy layer of the upper surface of the leaf, how the shape of the leaf traps light energy and why the upper surface of the leaf is a darker green than the lower surface.

This resource has four multiple-choice questions about photosynthesis.

Students are provided with some information about testing leaves for starch. They are required to match the steps in the process with their purpose, and to explain what substance is present that turns iodine blue-black.

Students are given diagrams of an experiment on photosynthesis using pond weed. Students are asked to put the diagrams of the experiment into the correct order, to give an aim, identify the gas produced, name the process in plants that produces this gas, and to write a conclusion for the experiment.

Students are given results from an investigation looking at light intensity and its effect on the rate of photosynthesis in two plants. Students are required to draw line graphs of this data and then answer a number of questions pertaining to this.

Task: Explain the science messages communicated in a cartoon. Assessment focus: decomposition and photosynthesis.