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on this post you will find 3 reading of IPA terpadu, first reading about rain from bactery, second reading about radiosotop and the last is about Sea and The advantage,

first reading RAIN (hujan)

Rain plays a role in the hydrologic cycle in which moisture from the oceans evaporates, condenses into bubbles, precipitates up to the sky, and eventually returns to the air via sun light and rivers to repeat the cycle again. The water vapor that respires from planets, evaporates to join other water molecules in condensing into bubbles. (hujan buatan di Indonesia pada umumnya dilakukan dengan menebarkan garam dapur (NaCl) atau kombinasinya dengan senyawa organik (urea) sebagai inti kondensasi air)

Second reading  radioisotop

Radiogenic isotope is an isotope created by the radioactive decay of radionuclides such as Uranium or Thorium.Radiogenic isotope is an isotope created by the radioactive decay of radionuclides such as Uranium or Thorium.
Radioactivity was first discovered in 1896 by the French scientist Henri Becquerel while working on phosphorescent materials. These materials glow in the dark after exposure to light, and he thought that the glow produced in cathode ray tubes by X-rays might somehow be connected with phosphorescence. So he tried wrapping a photographic plate in black paper and placing various phosphorescent minerals on it. All results were negative until he tried using uranium salts. The result with these compounds was a deep blackening of the plate

soal dapat di download pada link berikut

Download soal IPA Terpadu 1997

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on this post you will find 3 reading of IPA terpadu, first reading about magnesium, second reading about nitorgen organic and the last is about Sea and The advantage

Magnesium has the symbol Mg, the atomic number 12, and an atomic mass of 24.31. Magnesium is the eighth most abundant element and constitutes about 2% of the Earth’s crust by weight, and it is the third most plentiful element dissolved in seawater.Magnesium adalah logam yang paling ringan yang dapat digunakan untuk konstruksi Magnesium murni tidak didapatkan di alam, namun terkandung sebagai senyawa dalam mineral misalnya dolomit,Dolomite is the name of a sedimentary carbonate rock and a mineral, both composed of calcium magnesium carbonate CaMg(CO3)2 found in crystals.

Second reading
Organic Materials as Nitrogen Fertilizers

• Organic materials usually are added to soils to provide such plant nutrients as nitrogen and to improve the physical nature of the soil.
• Organic residues that have a low nitrogen content can cause nitrogen deficiencies in plants as microorganisms decompose the organic compounds.
• Inorganic nitrogen must be added with some organic fertilizers to prevent nitrogen deficiencies in Crops

soal Ipa terpadu dapat di dowload pada link berikut

Download Soal IPA Terpadu 1996

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