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Johnny and Ben learn about the tradition of tipping and why people follow traditions even when they don't know the reasons behind them.
by KELSI CROTTS
489 
3 The narrator reflects on how shopping has changed due to COVID-19, including restrictions in shopping centers and personal experiences.
17 Popper the penguin and his friends start a trend by wearing bow ties, but then surprise everyone by switching to sombreros and mustaches.
15 An educational book about ionization energy, electronegativity, and atomic radius, with a quiz at the end.
35 The story explains the three main trends of the periodic table: Ionization Energy, Electronegativity/Electron Affinity, and Atomic Radius. It also provides examples and a qui…
21 An introduction to periodic trends, including ionization energy, electronegativity, and atomic radius. Explains how to determine ionization energy and electronegativity, and …
27 Come struggle with the fam as we talk about the periodic table and trends~
43 An informative book about the periodic table and its three trends: ionization energy, electronegativity, and atomic radius.
29
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