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6. On the diagram above, label the melting point and boiling point on the y axis. see diagram 7. Explain, in terms of particles, what is happening at points a, b & c a) The particles in a solid are heated and vibrate, b) The particles in the liquid are heated and start to move around more quickly c) The particles in the gas move faster
When solids are heated, molecules move faster and spread apart as the solid becomes liquid and gas. In the Melting Points Gizmo, you will measure the transition points at which melting and boiling occur for a variety of substances. The Gizmo shows a lab device used to determine melting points and boiling points.
Melting - Melting is when a substance changes from a solid state to a liquid state. Melting point - The melting point of a substance is the temperature at which it changes from solid state to a liquid state. Forces of attraction - Forces of attraction hold particles together.
Key learning points. When it melts, a substance changes from the solid state to the liquid state. When it freezes, a substance changes from the liquid state to the solid state. At temperatures below its melting point, a substance is in its solid state. At temperatures above its freezing point, a substance is in its liquid state.
What activity can I use to compare melting points of different materials? You can use this handy table to help children compare the melting points of everyday materials. Children need to look at the information in the given table and answer the given questions.
This worksheet features the results of a test run which shows the temperature at which different materials melted. Can your children answer the questions using the results table? Next, learn more about melting points and states of matter.
For solid water (ice), the melting point is 0 °C., the energy gained by the particles allows them to partly overcome the strong forces holding them in place.
