Page 4 - E-Modul Larutan Penyangga
P. 4
FENOMENA
Setelah mengamati dengan seksama video 1 dan 2 nampak bahwa kulit telur dan
gigi sama- sama mengandung kalsium. Kulit telur akan terkikis oleh perendaman
dengan asam cuka dalam beberapa waktu beberapa jam dan ketika kita makan atau
minum gigi pun juga mengalami hal seurpa yaitu terkikis oleh senyawa asam yang
bera s a l
dari minuman, namun faktanya gigi tidak akan terkikis seperti pada kulit
telur. Mengapa hal tersebut dapat terjadi?
1. Rumusan Masalah
Buatlah rumusan masalah untuk kedua fenomena di atas. Cobalah berfikir secara
bersama-sama apa rumusan masalah yang muncul dari fenomena tersebut!
Jawab:
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Tahap 2: Verifikasi Pengumpulan
Data
2. Hipotesis
Bacalah materi pada buku pelajaran kalian, LKPD. internet, jurnal, atau sumber
lainnya!
untuk menemukan jawaban sementara (hipotesis) berdasarkan rumusan masalah
yang telah kalian buat. Tuliskan hipotesis kalian di bawah ini!
Jawab:
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SMA Negeri 1 Waru Sidoarjo - Tahun Pelajaran 2022/2023 3