The Three States of Matter The three states, SOLID, LIQUID and GAS are called the three states of matter (see Kinetic Theory) The boiling point of a substance is the temperature that causes it to change from a liquid to … Continue reading →
Nearly all energy we use on the Earth starts with energy from the Sun. The Sun powers wind, tides, and the water cycle The Water Cycle • Energy from the Sun (1) causes water from the sea to evaporate (2). … Continue reading →
Chemical change The three states of matter Change in Mass The Water Cycle Heating copper sulphate Heating magnesium ribbon If a solid chemical is heated several things could happen: It could melt (change from a solid to a liquid) … Continue reading →
There are many substances around us. They all have their own properties which is how we recognise them. Physical properties : colour, strength, malleable or brittle, conductor or insulator, high or low density, high or low melting point Chemical properties: … Continue reading →
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