Science Review

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Across
  1. 1. a wave in which particles move in the same direction of energy transfer
  2. 6. an element that has some metallic and some nonmetallic properties
  3. 7. a contact force that two surfaces exert on each other when they push or rub against each other
  4. 9. a change that alters the form or appearance of matter but does not form any new substances
  5. 10. a law that states if one object exerts a force on another object, then the second object exerts an equal but opposite force on the first object
  6. 14. mixture made of parts that are easily identified and can be separated
  7. 17. a law of physics that states that energy cannot be created or destroyed but can be transferred or transformed from one form to another
  8. 18. the material through which a wave travels
  9. 20. energy due to the position of an object or its shape
  10. 23. change a change in matter that produces one or more new substances
  11. 24. two forces acting on the same object that are equal in strength and opposite in direction
  12. 26. the basic unit of matter
  13. 27. a change that results in the formation of one or more new substances
  14. 28. an element that is a good conductor of heat and electricity
  15. 29. law of motion stating that the amount of force applied to an object is equal to the product of the object’s mass and its acceleration
Down
  1. 2. two forces acting on the same object that are not equal in strength and opposite in direction
  2. 3. a non-contact force that pulls objects with mass toward each other
  3. 4. law of motion stating that a body at rest will remain at rest, and a body in motion will remain in uniform motion, unless acted upon by an external force
  4. 5. the sum of an object’s energy in motion (kinetic energy) and its stored energy (potential energy)
  5. 8. mixture made of substances so evenly mixed that it is difficult or impossible to see the individual substances
  6. 11. energy of motion
  7. 12. substance that contains only one type of atom and cannot be broken down into a simpler form
  8. 13. a wave in which particles move perpendicular to the direction of energy transfer
  9. 15. sum of all forces acting on an object, taking into account their strength and direction
  10. 16. a chart that organizes all known elements according to patterns in their properties
  11. 19. substance substance that consists of just one type of particle and is the same throughout
  12. 21. an element that is a poor conductor of heat and electricity
  13. 22. a disturbance that transfers energy from one place to another
  14. 25. two or more atoms joined by chemical bonds