Substrand · Mixtures,elements and compounds · Integrated Science · Grade 9
Free CBE Grade 9 Integrated Science notes and lessons for Water hardness, in the Mixtures,elements and compounds strand.
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An alloy is a uniform mixture of two or more metals, sometimes with a non-metal. It is made by mixing molten metals and letting them cool. Alloys are stronger, more corrosion-resistant and more durable than pure metals. Brass is made from Copper + zinc Uses…
Physical properties of water: colourless, odourless and tasteless, with a boiling point of 100 °C and a freezing point of 0 °C. The boiling-point experiment plots temperature against time. The temperature rises, then stays constant at the boiling point. Hard…
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