Science Vocab 2

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Across
  1. 1. model of matter- A model that states that all physical matter exists in the form of particles.
  2. 4. The measure of the amount of matter in an object.
  3. 6. mixture- A mixture that does not have a uniform appearance since that combined substances are unevenly distributed.
  4. 10. group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction.
  5. 12. A state of matter that has no definite shape but has a definite volume.
  6. 13. The force of gravity acting on the matter in an object.
  7. 17. A state of matter with no definite shape or volume
  8. 18. A pure substance that consists of atoms with the same atomic number.
  9. 19. The mass per unit volume of an object.
Down
  1. 2. A pure substance consisting of atoms of two or more different elements that are chemically combined.
  2. 3. mixture- A mixture that has a uniform appearance throughout; also known as a solution, especially of a solid dissolved in a liquid.
  3. 5. Anything that has mass and takes up space
  4. 7. A form of matter that has a definite shape and volume
  5. 8. substance- A material made of only one kind of element or compound.
  6. 9. A physical combination of two or more substances in a changeable ratio.
  7. 11. of definite proportions- that states that the masses of chemical substances combine in definite, characteristic integer ratios when forming compounds.
  8. 14. A gas-like state of matter, formed at very high temperatures, that consists of high-energy ions and free electrons.
  9. 15. The building block of all matter; consists of protons, electrons, and usually neutrons.
  10. 16. The space enclosed or occupied by an object.