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Across 4. The state of matter which allows slower conduction. 5. A metal spoon feels _______ than a wooden spoon when both are placed at room temperature 6. In winter, houses are insulated to prevent _______ loss. 7. When material is heated, the particles _______. 9. Wool and feathers are examples of ______. 10. The state of matter which allows no conduction.

Down 1. Copper and iron are examples of good _______. 2. The state of matter which allows better conduction. 3. In metals, atoms contain free _______ which move randomly within the metal. 8. Matter is made up of tiny perticles known as _______.