KARAKTERISTIK AIR LIMBAH

1.      TUJUAN

Siswa dapat mengamati karakteristik air limbah dari segi fisika, kimia, dan biologi

2.      ALAT DAN BAHAN

ALAT:

a.       Gelas kimia

b.      Cawan

c.       Pipet tetes

d.      Lakmus merah/biru

e.       Termometer

BAHAN

a.       Air mineral

b.      Air mineral Aqua

c.       Air sumur

d.      Air keruh

3.      CARA KERJA

a.       Karakteristik fisika

-          Amati warna, rasa, bau, suhu dan kekeruhan air

-          Catatlah hasilnya dalam tabel pengamatan

b.      Karakteristik biologi

-          Amati apakah ada makhluk hidup seperti jentik-jentik misalnya dalam sampel

-          Catatlah hasilnya dalam tabel pengamatan

c.       Karakteristik kimia

-          Letakkan kertas lakmus merah dan biru dalam cawan

-          Teteskan sampel air pada kedua kertas lakmus

-          Amati perubahan warna yang terjadi pada masing-masing kertas lakmus

-          Catatlah hasilnya dalam tabel pengamatan

4.      HASIL PENGAMATAN

a.       Karakteristik fisika dan biologi

SIFAT	HASIL PENGAMATAN SAMPEL .......
	AIR MINERAL	AIR AQUA	AIR SUMUR	AIR KERUH
WARNA
RASA
BAU
SUHU
KEKERUHAN
MAKHLUK HIDUP/JENTIK-JENTIK/JAMUR

b.      Karakteristik kimia

KERTAS LAKMUS	PERUBAHAN WARNA KERTAS LAKMUS SAMPEL .......
	AIR MINERAL	AIR AQUA	AIR SUMUR	AIR KERUH
MERAH
BIRU

5.      PERTANYAAN

a.       Sampel apa saja yang layak dikonsumsi?

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b.      Sampel apa saja yang tidak layak dikonsumsi?

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c.       Sebutkan ciri-ciri air bersih!

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6.      KESIMPULAN

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