Semester 2 Science Grade 8 Revision

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Which one has more thermal energy - 30 oC 200 mL cup or 20 oC 1 L cup?

20 oC 1 L cup

Why does it feel hot when you touch sand during the day?

heat from sand is transferred to heat from hand

Boiling water is an example mainly of - conduction, convection or radiation?

mainly convection

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