LEMBAR KERJA
PRAKTIKUM IPA DASAR DI SD
BUMI DAN ALAM SEMESTA
Kegiatan Praktikum 1 1. Percobaan Udara
a. Pembakaran memerlukan udara
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No. Uji coba Selang waktu sampai lilin mati( t )
1 2 3 4 5
b. Udara menekan dari tekanan tinggi ke rendah
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Gambar 9.1
Dua lilin yang sama ukuran dengan jarak 30 cm
Gambar 9.2
Satu lilin ditutup gelas lilin yang lain tidak
Tabel 9.1
c. Udara sebagai sumber energy 1.
________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ d. Jawaban pertanyaan
1. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 2. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 3. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________
Gambar 9.3
Balon meluncur di antara tiang penyangga
Gambar 9.4
4. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________
2. Percobaan klasifikasi batuan a. Jenis-jenis batuan
No Jenis Batuan Masssa (kg) Volume (m3) Masa Jenis (kg/m3) 1 Batu apung
2 Granit 3 Konglomerat 4 Batu gamping 5 Breksi
Jawaban pertanyaan
1. ____________________________________________________________________ a. _________________________________________________________________ _________________________________________________________________ b. _________________________________________________________________ _________________________________________________________________ c. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ 2. ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ - ________________________________________________________________
________________________________________________________________ ________________________________________________________________ - ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ - ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ ________________________________________________________________ - ________________________________________________________________
Tabel 9.2
Jenis batuan
Gambar 9.5
- _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ - _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ - _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ - _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ - _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ _____________________________________________________________ - ________________________________________________________________
________________________________________________________________ - ______________________________________________________________
______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ - ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 3. ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________
b. Karakteristik batuan
No Jenis Batuan Karakteristik Batuan*
1 2 3
c. Pengamatan gambar batuan
Tabel 9.3
NO Jenis Batuan Ciri Utama Cara Terbentuknya
1
2
3
4
5
1
2
3
4
1
2
d. Klasifikasi batuan
No Asal Batuan Contoh
e. Jawaban Pertanyaan
1. _________________________________________________________________ _________________________________________________________________ a. ______________________________________________________________ ______________________________________________________________ b. ______________________________________________________________ ______________________________________________________________ c. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ 2. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ a. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ b. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ c. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________
Tabel 9.5
3. _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________ _________________________________________________________________
Kegiatan praktikum 2
1. Percobaan Panas Matahari To = 0o C
No. Waktu
Keadaan Air
Keterangan (A)Tanpa
Lempeng
(B)Dengan Lempeng
1 10 menit Masih dingin Masih dingin Air masih tetap tidak berkurang 2 25 menit Hangat Hangat Air masih tetap tidak
berkurang 3 40 menit Air mulai panas Hangat Air berkurang di
percobaan A 4 45 menit Air menjadi panas Mulai panas Air keduanya juga
berkurang 5 60 menit Sangat panas Panas Air berkurang/menguap
Jawaban pertanyaan
1. _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________
- ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ - ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ - ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________ - ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________
Tabel 9.6
____________________________________________________________________ ____________________________________________________________________ 2. _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ 3. _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________ _______________________________________________________________________
2. Percobaan Gerhana
a. Percobaan Gerhana Matahari b. Percobaan Gerhana Bulan
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Jawaban pertanyaan
1. ___________________________________________________________________ ___________________________________________________________________ ___________________________________________________________________
Gambar 9.6
Gerhana Matahari
Gambar 9.7
