SME
Grade 7 Science · Problem type
Solid, liquid or gas at room temperature?
Use this for “At 20 °C, is the substance a solid, a liquid or a gas?”
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Its state at 20 °C?
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Assumptions
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Compare 20 °C with the melting and boiling points.
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Every substance has its own melting and boiling points: they help identify it.
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