OSAS Science Grade 8 Practice Questions - Oregon Statewide Assessment System - Science, Grade 8 Exam

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A sealed container holds nitrogen gas at room temperature. A student compares the nitrogen gas particles to the particles in a solid block of iron at the same temperature. Which statement best describes the difference in particle behavior?

The gas particles vibrate in fixed positions while the iron particles move randomly throughout the solid The gas particles move rapidly and randomly, filling the container, while the iron particles vibrate around fixed positions Both the gas and iron particles move in straight lines through the container at the same speed The gas particles are stationary and only move when the container is shaken

Correct Answer:

The gas particles move rapidly and randomly, filling the container, while the iron particles vibrate around fixed positions

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