Etch a Cell – Zooniverse

In this online citizen science (OCS) project, participants analyse electron microscope images taken of a range of biological samples, helping scientists better understand cancer, infectious diseases such as malaria and HIV, diabetes, the immune system, the brain and more.

URL: www.zooniverse.org/projects/h-spiers/etch-a-cell

Reach: Worldwide

Nature of science focus: OCS projects can be used to develop any of the Nature of Science (NoS) substrands. Identify aspects of NoS that your students need to get better at or understand more fully and then frame your unit to be very clear about these things when you do them.

Science capability focus: Interpret representations

Science focus: cell structure, disease

Some suggested science concepts:

• Eukaryotic cells have a cell membrane, cytoplasm and nucleus.
• Cells have different structures that correspond with their specific functions.
• The structure of a cell and its internal organisation enables cellular processes to proceed efficiently.

Some examples of learning outcomes:

Students can:

Many concepts could be learned – focusing on a few can often be more powerful. Develop your learning outcomes and success criteria from these concepts as well as the Nature of Science strand and the science capabilities.

About Etch a Cell

This project, developed on the Zooniverse platform by researchers at London’s Francis Crick Institute, shows human cells up close. Participants are invited to examine electron microscope images taken through multiple sections of cell samples and accurately circle the nuclear envelope. The task is simple but requires patience and persistence. This provides an opportunity to discuss these traits and why they are important in scientists’ work.

Drawing around the edge of the nuclear envelope is the first step for scientists to then layer up these 2D shapes to create a 3D image of the nuclear envelope. Scientists can then ‘see’ more clearly inside the cell. By studying the biological features of both diseased and healthy cells, comparisons can be made that may lead to greater understanding about certain diseases and potentially their causes or cures.

This project does not share the data that citizens help to generate, but there is some very useful background information on the research page, including an example of 2D images layered to make an animated revolving 3D nuclear envelope. The animated comparison of expert versus citizen 3D nuclear envelopes in the results page is also of interest – can you see a difference?

There is a ‘Talk’ feature where you can post questions to the scientists. This accessibility to the experts has been shown to be a powerful connection and motivator for students.