Grade 7 Biology Class: Onion cell investigation

Is a plant cell bigger or smaller than an animal cell? What is the largest cell you can see without a microscope? These are some of the questions, our students of Grade 7 can now definitely answer. This week, the students investigated the cell structure of onions during their biology class. The students first observed the organism with microscopes, took pictures of the magnified objects, and then created biological diagrams of what they saw. This investigation demonstrated that living things are made of cells; either one cell or many different numbers and types of cells. The students further learned how to precisely follow a multi-step procedure in order to successfully carrying out a scientific experiment.

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