https://padlet.com/miss_nat_ho/4Bgroup1 How can we find out what Substance X is? en-us 2019-04-12 07:44:15 UTC 2025-12-02 20:33:38 UTC hello@padlet.com https://imgglb.padletcdn.com/v13/image?t=g_auto&url=https%3A%2F%2Fpadlet.net%2Ficons%2Fpng%2F1f9e0.png miss_nat_ho https://padlet.com/miss_nat_ho/4Bgroup1/wish/351067994 Please start a post and upload your presentation when you are ready! ]]> 2019-04-12 07:48:43 UTC https://padlet.com/miss_nat_ho/4Bgroup1/wish/351067994