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Let's take a look at how to observe cells under a microscope ... Cut a small chunk from your onion. Be careful with knives. Ask an adult if you need help. Peel a thin layer off that chunk and ...
Let's take a look at how to observe cells under a microscope ... Cut a small chunk from your onion. Be careful with knives. Ask an adult if you need help. Peel a thin layer off that chunk and ...
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