Physical Science 6th Grade Section 1

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Across
  1. 2. Materials or substances found in nature that people use.
  2. 4. The process of changing from one state of matter to another, such as melting or boiling.
  3. 5. The temperature at which a solid turns into a liquid.
  4. 6. Groups of two or more atoms joined together. Molecules make up substances.
  5. 8. Man-made materials created through chemical processes.
  6. 9. The process of examining and interpreting data to understand patterns, make conclusions, or solve problems.
  7. 10. The energy an object has due to its motion.
  8. 11. Characteristics or qualities of a substance that can be observed or measured, such as color, size, shape, and texture.
  9. 13. The energy that comes from heat. It is the total energy of all the moving particles in a substance.
  10. 14. The temperature at which a liquid turns into a gas.
  11. 16. The series of steps or reactions that occur when substances change into new substances.
  12. 18. The smallest unit of matter that makes up everything around us. Atoms are like tiny building blocks that combine to form molecules.
  13. 19. Simplified representations of complex objects or processes used to help understand and explain how things work.
Down
  1. 1. The ability of a substance to catch fire and burn easily.
  2. 3. A process where substances (reactants) change into new substances (products) with different properties.
  3. 7. The amount of mass in a given volume. It is calculated by dividing mass by volume.
  4. 12. The different forms that matter can take: solid, liquid, and gas.
  5. 15. The smell of a substance.
  6. 17. How well a substance can dissolve in a liquid.