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Posted on April 9, 2010. Hari ini polling tentang pilihan terhadap alat dan bahan percobaan telah ditutup. Buku akan segera kami kirim. 124; Leave a comment. Posted on April 5, 2010. Tapioka, pewarna biru, air, 2 gelas, sendok makan. Isi kedua gelas dengan air hingga setengahnya. Tambahkan 1 sendok makan natrium metasilikat.
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