Photosynthesis experiment

Photosynthesis experiment

C010/9593 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 51.7MB

Downloadable file size: 1.3MB

Price image Pricing

Please login to use the price calculator


Caption: Photosynthesis experiment. Student carrying out an experiment to investigate photosynthesis. The vials have been filled with water and algal balls, made from a mixture of algae and sodium alignate (a gum extracted from brown algae). A bicarbonate indicator has been added that changes colour as the pH changes due to the production of carbon dioxide during photosynthesis. The vials are then placed in various conditions, such as in different light intensities and in the dark, along with a control with no indicator used. The colour changes allow deductions to be made about how light levels influence photosynthesis.

Release details: Model release available. Property release not required.

Keywords: acid-base indicator, acidity, adolescent, algae, algal balls, alkali, alkaline, aquatic, asian, biochemical, biochemistry, biological, biology, botanical, botany, carbon dioxide, changes, chemical, chemistry, child, classroom, color, colors, colour changes, colours, control, dark, demonstration, education, educational, experiment, experimenting, female, flora, girl, human, indicator, lab, laboratory, laboratory equipment, learning, lesson, light, light levels, nature, people, person, ph change, phial, photosynthesis, plant, pupil, school, school science, schoolchild, schoolgirl, sodium alignate, student, teenage, teenager, variation, vial, vials, youth

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.