1. What is… The answer to these science definitions from unit C?

2. Matter: A.Anything that has mass and takes up space B.The amount of matter in an object C.A measure of the pull of gravity on an object

3. Physical Properties a.the ability of a substance to go through a chemical change b.the ability of one substance to be dissolved in another substance c.characteristics of a substance that can be observed or measured without changing the substance

4. Mass: a.anything that has mass and takes up space b.the amount of matter in an object c.a measure of the pull of gravity on an object

5. Weight: a.anything that has mass and takes up space b.the amount of matter in an object c.a measure of the pull of gravity on an object

6. Volume: a.the concentration of matter in an object b.the amount of space an object takes up c.anything that has mass and takes up space

7. Density: a.anything that has mass and takes up space b.a measure of the pull of gravity on an object c.the concentration of matter in an object

8. Solubility: a.the ability of a substance to go through a chemical change b.the ability to cause changes in matter c.the ability of one substance to be dissolved in another substance

9. Solid: a.state of matter with a definite volume but no definite shape b.state of matter without a definite shape or volume c.state of matter with a definite shape and a definite volume

10. Liquid: a.state of matter with a definite volume but no definite shape b.state of matter without a definite shape or volume c.state of matter with a definite shape and a definite volume

11. Gas: a.state of matter with a definite volume but no definite shape b.state of matter without a definite shape or volume c.state of matter with a definite shape and a definite volume

12. Evaporation: a.the process by which a gas changes into a liquid b.the chemical property of being able to burn c.the process by which a liquid changes into a gas

13. Condensation: a.the process by which a gas changes into a liquid b.the chemical property of being able to burn c.the process by which a liquid changes into a gas

14. Reactivity: a.the ability of a substance to go through a chemical change b.the ability to cause changes in matter c.the ability of one substance to be dissolved in another substance

15. Combustibility: a.the chemical property of being able to burn b.the ability to cause changes in matter c.the ability of one substance to be dissolved in another substance

16. Nucleus: a.the smallest unit of an element that has all the properties of that element b.the center of an atom c.a subatomic particle with no charge

17. Proton: a.the smallest unit of an element that has all the properties of that element b.a subatomic particle with a positive charge c.the center of an atom

18. Neutron: a.the smallest unit of an element that has all the properties of that element b.the center of an atom c.a subatomic particle with no charge

19. Electron: a.a subatomic particle with no charge b.a subatomic particle with a positive charge c.a subatomic particle with a negative charge

20. Element: a.a grouping of two or more atoms joined together b.the smallest unit of an element that has all the properties of that element c.a substance made up of only one kind of atom

21. Atom: a.a grouping of two or more atoms joined together b.the smallest unit of an element that has all the properties of that element c.a substance made up of only one kind of atom

22. Molecule: a.a grouping of two or more atoms joined together b.the smallest unit of an element that has all the properties of that element c.a substance made up of only one kind of atom

23. Periodic Table: –a table of elements arranged in order of increasing atomic number –a grouping of two or more atoms joined together –the ability to cause changes in matter

24. Compound: a.a substance made up of only one kind of atom b.a substance made up of the atoms of two or more different elements c.a grouping of two or more atoms joined together

25. Energy: a.the ability of a substance to go through a chemical change b.the ability to cause changes in matter c.the ability of one substance to be dissolved in another substance

26. Kinetic Energy: a.the energy an object has because of its place or its condition b.the ability to cause changes in matter c.the energy of motion, or energy in use

27. Potential Energy: a.the energy an object has because of its place or its condition b.the ability to cause changes in matter c.the energy of motion, or energy in use

28. Electric Charge: a.the charge obtained by an object as it gains or loses electrons b.the attraction or repulsion of objects due to their electric charges c.the flow of electrons from a negatively charged object to a positively charged object

29. Electric Force: a.the charge obtained by an object as it gains or loses electrons b.the attraction or repulsion of objects due to their electric charges c.the flow of electrons from a negatively charged object to a positively charged object

30. Electric Current: a.the charge obtained by an object as it gains or loses electrons b.the attraction or repulsion of objects due to their electric charges c.the flow of electrons from a negatively charged object to a positively charged object

31. Conductor: a.material that conducts electrons easily b.material that does not conduct electrons c.a material that resists the flow of electrons

32. Electric Circuit: a.the path along which electrons flow b.the charge obtained by an object as it gains or loses electrons c.the attraction or repulsion of objects due to their electric charges

33. Insulator: a.material that conducts electrons easily b.material that does not conduct electrons c.a material that resists the flow of electrons

34. resistor: a.material that conducts electrons easily b.material that does not conduct electrons c.a material that resists the flow of electrons

35. Electromagnet: a.the bending of light rays as they pass through a substance b.a temporary magnet made by passing an electric current through a wire coiled around an iron bar c.a characteristic of sounds determined by the speed at which sound waves move

36. reflection: a.a piece of clear material that bends, or refracts, light rays passing through b.the bending of light rays as they pass through a substance c.light energy that bounces off objects

37. refraction: a.a piece of clear material that bends, or refracts, light rays passing through b.the bending of light rays as they pass through a substance c.light energy that bounces off objects

38. temperature: a.the transfer of thermal energy from one substance to another b.the average kinetic energy of all the molecules in an object c.the direct transfer of heat between objects that touch

39. heat: a.the transfer of thermal energy from one substance to another b.the average kinetic energy of all the molecules in an object c.the direct transfer of heat between objects that touch

40. conduction: a.the transfer of thermal energy from one substance to another b.the average kinetic energy of all the molecules in an object c.the direct transfer of heat between objects that touch

41. convection: a.the transfer of heat due to the mixing of a liquid or a gas b.the transfer of thermal energy by electromagnetic waves c.the direct transfer of heat between objects that touch

42. radiation: a.the transfer of heat due to the mixing of a liquid or a gas b.the transfer of thermal energy by electromagnetic waves c.the direct transfer of heat between objects that touch