Page 5 - BA KELAS 8
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BAB 5 ZAT ADITIF DAN ZAT ADIKTIF ........................................................................... 41
Zat Aditif .............................................................................................................................. 41
Zat Adiktif ............................................................................................................................ 44
Dampak Penggunaan Zat Adiktif .................................................................................... 47
Upaya Pencegahan Diri dari Bahaya Narkoba ............................................................. 48
BAB 6 SISTEM PEREDARAN DARAH MANUSIADARAH ............................................ 49
Jantung ............................................................................................................................... 54
Pembuluh Darah ................................................................................................................ 55
Sistem Peredaran Darah................................................................................................... 56
Gangguan dan Penyakit Sistem Peredaran Darah ...................................................... 57
BAB 7 TEKANAN ZAT DAN ............................................................................................... 61
Tekanan Zat Padat ............................................................................................................. 61
Tekanan Zat Cair ............................................................................................................... 62
Tekanan Gas ....................................................................................................................... 66
Pengangkutan Air dan Nutrisi pada Tumbuhan .......................................................... 67
Tekanan Darah pada Sistem Peredaran Darah Manusia ........................................... 70
Tekanan Gas pada Proses Pernapasan Manusia ......................................................... 71
BAB 8 SISTEM PERNAPASAN MANUSIA ........................................................................ 73
Organ Sistem Pernapasan Manusia ............................................................................... 73
Mekanisme Pernapasan .................................................................................................... 75
Frekuensi Pernapasan ...................................................................................................... 76
Volume Pernapasan ........................................................................................................... 76
Gangguan pada Sistem Pernapasan dan Upaya Mencegahnya ................................ 76
BAB 9 SISTEM EKSKRESI MANUSIA.............................................................................. 80
Ginjal .................................................................................................................................... 80
Kulit ...................................................................................................................................... 83
BAB 10 GETARAN, GELOMBANG DAN BUNYI .............................................................. 89
Getaran ................................................................................................................................ 89
Gelombang .......................................................................................................................... 89
Bunyi .................................................................................................................................... 91
Mekanisme Mendengar pada Manusia .......................................................................... 94
Mekanisme Mendengar pada Hewan ............................................................................. 96
Aplikasi Getaran dan Gelombang dalam Teknologi .................................................... 97
BAB 11 CAHAYA DAN ALAT OPTIK ................................................................................ 99
Sifat – sifat Cahaya ............................................................................................................ 99
Pembentukan Bayangan padaCermin ......................................................................... 101
Lensa .................................................................................................................................. 107
Indra Penglihatan Manusia dan Hewan ...................................................................... 110
Alat Optik dalam Kehidupan Sehari – hari ................................................................. 113
Buku Ajar IPA Kelas VIII SMP Negeri 4 Toili @2021 5 of 117
