Using lolly slices to build 3D images
In this activity, students model how scientists interpret microscope data by using thin slices of jelly lollies to build up a 3D image.
What food is this?
Examples of some common foods thinly sliced into 2D sections from different angles – can you identify them all?
By the end of this activity, students should be able to:
describe how they used thin, 2D-like slices to build up a 3D image
explain how this process relates to actual data interpretation when using microscopes and other imaging technologies
describe some of the methods scientists use to help them interpret the data from 2D images.
Download the Word file (see link below) for:
introduction/background notes
what you need
what to do
discussion questions
extension ideas
student worksheet.
Nature of science
While observation and gathering data is essential to the process of science, it is only half the picture. Interpreting these observations and data is the other half. Scientists’ observations can’t directly tell them how things work. Instead, observations inspire, lend support to and help refute hypotheses and theories.
Activity idea
A second approach, using 2D images taken from different angles through the whole thickness of a sample to build up a 3D image, is explored in the activity Using shadows to build 3D images.
Useful link
See these MRI scans of images of fruits and vegetables.
