I want to make a physics simple working model for higher secondary.plz guide?

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Internet Marketing Coaching Forum > Creating The Million Dollar Mindset > Mindset Material (Moderators: Maddi M, nowimhere, Bhavin) > I want to make a physics simple working model for higher secondary.plz guide?

[slice2020]

can be model of burglar alarm, automatic letter box alarm or other similar easy models.Please also provide details for making the model.
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