Classifying Matter

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Across
  1. 3. The smallest part of an element that has all the properties of that element.
  2. 5. A minute, or tiny, portion of matter
  3. 8. A particle with a positive charge found in the nucleus of atoms.
  4. 9. Two or more atoms that are attached together.
  5. 11. A property of particles. Particles with opposite charges attract each other, while particles with the same charges repel.
  6. 12. A pure substance that can’t be broken down into simpler substances.
  7. 13. The amount of material contained in an object, such as gold. An object's mass is always the same, even in outer space.
Down
  1. 1. Any physical substance or material that takes up space and has mass. If you can put it in a jar, it’s matter.
  2. 2. A particle with no charge found in the nucleus of atoms.
  3. 4. A substance that consists of two substances mixed together.
  4. 5. A table that lists the earth’s 118 elements in a specific order.
  5. 6. The center of the atom, which contains neutrons and protons.
  6. 7. A negatively charged particle that orbits the center of the atom.
  7. 10. Atoms from two or more different elements that are attached together in specific proportions.