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Why Does Density Decrease When Temperature Increases? [Solved]

Focus Question: How does temperature affect density? When a liquid or gas is heated, the molecules move faster, bump into each other, and spread apart. Because the molecules are spread apart, they take up more space. They are less dense.

How does temperature affect the density of water? | Live Experiments (Ep 39) | Head Squeeze

Morna Fisken shows us how

Effect of temperature on density

Water

Gas Density Decrease When Increasing Temperature

The goal of this experiment is to show how