Buku Sains 6 Kelas 6 SD

Materi Sains 6

KATA SAMBUTAN.......................................................................................................... iii
KATA PENGANTAR ........................................................................................................ i v
DAFTAR ISI .................................................................................................................... v
SEMESTER 1

BAB 1 CIRI KHUSUS PADA MAKHLUK HIDUP ...................................................... 3
A. Ciri Khusus pada Hewan ......................................................................... 5
B. Ciri Khusus pada Tumbuhan ................................................................... 8
Wacana Salingtemas..................................................................................... 10
Ingat Kembali ................................................................................................. 11
Ayo Kerjakan.................................................................................................. 12

BAB 2 PERKEMBANGAN MAKHLUK HIDUP ......................................................... 15
A. Perkembangan dan Pertumbuhan Manusia ............................................. 17
B. Ciri Perkembangan Fisik Anak Laki-laki dan Perempuan ......................... 18
C. Perkembangbiakan Tumbuhan ................................................................ 21
D. Perkembangbiakan Hewan...................................................................... 32
E. Perkembangbiakan Manusia.................................................................... 35
Wacana Salingtemas..................................................................................... 36
Ingat Kembali ................................................................................................. 37
Ayo Kerjakan.................................................................................................. 38

BAB 3 PENGARUH KEGIATAN MANUSIA TERHADAP KESEIMBANGAN
LINGKUNGAN................................................................................................41
A. Kegiatan Manusia yang Dapat Memengaruhi Keseimbangan Ekosistem.... 43
B. Bagian Tumbuhan yang Sering Dimanfaatkan Manusia ........................... 46
C. Bagian Tubuh Hewan yang Sering Dimanfaatkan Manusia ...................... 47
D. Mencegah Kepunahan Hewan dan Tumbuhan ........................................ 48
Wacana Salingtemas..................................................................................... 49
Ingat Kembali ................................................................................................. 50
Ayo Kerjakan.................................................................................................. 51

BAB 4 PELESTARIAN MAKHLUK HIDUP ............................................................... 53
A. Jenis Hewan dan Tumbuhan yang Mendekati Kepunahan ....................... 55
B. Pentingnya Pelestarian Makhluk Hidup.................................................... 57
Wacana Salingtemas..................................................................................... 58
Ingat Kembali ................................................................................................. 59
Ayo Kerjakan.................................................................................................. 60

BAB 5 HUBUNGAN ANTARA SIFAT HANTARAN DAN KEGUNAAN BENDA ......... 63
A. Perbedaan Kemampuan Menghantarkan Panas dari Berbagai Benda .... 65
B. Kegunaan Benda Berdasarkan Kemampuannnya Menghantarkan Panas 67
Wacana Salingtemas..................................................................................... 69
Ingat Kembali ................................................................................................. 70
Ayo Kerjakan.................................................................................................. 71

BAB 6 FAKTOR PENYEBAB PERUBAHAN PADA BENDA ..................................... 73
A. Faktor-faktor yang Menyebabkan Perubahan Benda ................................75
B. Faktor-faktor yang Menentukan Pemilihan Bahan .................................... 78
Wacana Salingtemas..................................................................................... 81
Ingat Kembali ................................................................................................. 82
Ayo Kerjakan.................................................................................................. 83
AYO KERJAKAN SEMESTER 1 ................................................................................... 85
SEMESTER 2

BAB 7PERPINDAHAN ENERGI ............................................................................... 93
A. Gaya dan Gerak....................................................................................... 95
B. Energi Listik .............................................................................................. 98
Wacana Salingtemas..................................................................................... 102
Ingat Kembali ................................................................................................. 103
Ayo Kerjakan.................................................................................................. 104

BAB 8 HEMAT ENERGI ............................................................................................ 107
A. Penggunaan Energi Listrik ....................................................................... 109
B. Penghematan Energi ............................................................................... 110
C. Membuat Karya yang Menggunakan Energi Listrik .................................. 110
Wacana Salingtemas..................................................................................... 113
Ingat Kembali ................................................................................................. 114
Ayo Kerjakan.................................................................................................. 115

BAB 9 BUMI DAN ALAM SEMESTA ......................................................................... 117
A. Tata Surya ................................................................................................ 119
B. Pergerakan Bumi dan Bulan .................................................................... 126
C. Gerhana Bulan dan Gerhana Matahari ..................................................... 130
D. Sistem Penanggalan ................................................................................ 131
Wacana Salingtemas..................................................................................... 133
Ingat Kembali ................................................................................................. 134
Ayo Kerjakan.................................................................................................. 135
AYO KERJAKAN SEMESTER 2 ................................................................................... 138

GLOSARIUM.................................................................................................................143
DAFTAR PUSTAKA ........................................................................................................ 146
KUNCI JAWABAN........................................................................................................... 147