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wax water 1. When water evaporates its PE goes up so the KE (and temp.) must go down. Evaporation is a cooling process. 2. When wax freezes its PE goes.

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Presentation transcript:

Do now! Can you stick the sheet in your book? He’s going to blow! Be careful Good Neutral Excellent MOODOMETER

Last lesson Investigating the viscosity (“runniness”) of oil Melting and boiling points

Homework Can you finish the oil investigation (graph + conclusion) for next Wednesday 23 rd April

Today’s lesson Investigating the melting point of wax

Melting points The melting point is the same as the temperature that a liquid solidifies (turns back into a solid)

Melting points The melting point is the same as the temperature that a liquid solidifies (turns back into a solid). For example ice melts at 0°C but water also freezes at 0°C. Can you copy this please?

Melting point of wax?

Table of results Time (mins)Temp of water (°C) Temp of wax (°C)