1. A substance that cannot be broken down into simpler substances is

2. An element

3. The science of matter and how it changes

4. Chemistry

5. The smallest unit of a substance that behaves like the substance is

6. An atom

7. Which of the following is a gas-liquid mixture?
The air we breathe
A carbonated drink
Soapsuds
Ice cubes

8. Carbonated Drink

9. A material that can be represented by a chemical formula is a

10. Pure substance

11. Heterogeneous mixture
You put 1 gram of salt into 1 liter of water and stir. The resulting liquid is an example of
A pure substance
Heterogeneous mixture
A homogeneous mixture
An immiscible mixture

12. A homogeneous mixture

13. Substance Solution Colloid Suspension
Smoke is an example of a
Substance
Solution
Colloid
Suspension

14. Colloid

15. Another name for a liquid homogeneous mixture
Suspension
Substance
Solution
Liquid

16. Solution

17. Matter is defined as anything that

18. Has mass and takes up space

19. A heterogeneous mixture containing a liquid in which visible particles settle is called a?

20. Suspension

21. A mixture that contains two or more substances blended evenly throughout is called a ?

22. Homogeneous Mixture

23. A substance in which all atoms are alike is called?

24. An element

25. The scattering of light by colloidal particles is called the?

26. Tyndall Effect

27. Water element compound mixture

28. compound

29. Sulfur element compound mixture

30. element

31. Pepper element compound mixture

32. Mixture

33. Vinegar homogeneous heterogeneous

34. homogeneous

35. Italian Salad Dressing homogeneous heterogeneous

36. heterogeneous

37. Tea suspension colloid solution

38. solution

39. Orange juice with pulp suspension colloid solution

40. suspension

41. Fog suspension colloid solution

42. colloid

43. A molecule of water (H2O) is made from _____ combining two hydrogen atoms and one oxygen atom.
a. physically
b. ionically
c. thermally
d. chemically

44. chemically

45. The chemical formula for water, H2O, means that each water molecule contains
two hydrogen atoms and two oxygen atoms.
two hydrogen atoms and one oxygen atom.
two hydrogen atoms and zero oxygen atoms.
one hydrogen atom and two oxygen atoms.

46. two hydrogen atoms and one oxygen atom.

47. Which of the following is not a pure substance?
a. element
b. molecule
c. compound
d. mixture

48. mixture

49. Which of the following is an element?
a. salt
b. iron
c. nylon
d. sand

50. iron

51. The different substances in a mixture a. keep their properties. b
The different substances in a mixture a. keep their properties. b. combine chemically. c. form new molecules. d. cannot be separated.

52. keep their properties.

53. A heterogeneous mixture with particles that NEVER settle?
a. solution
b. suspension
c. colloid
d. compound

54. colloid

55. Which tool is best for separating a mixture of sand and water. a
Which tool is best for separating a mixture of sand and water? a. tweezers b. magnet c. centrifuge d. filter

56. filter

57. Any material made of two or more substances that can be physically separated?
a. element
b. mixture
c. compound
d. molecule

58. mixture

59. Unlike a mixture, a pure substance has
a. atoms
b. molecules
c. a specific size.
d. a fixed composition.

60. a fixed composition.

61. The resistance of a fluid to flow is referred to as
a. pressure.
b. energy.
c. viscosity.
d. shape.

62. viscosity.

63. Matter includes all of the following EXCEPT
a. air.
b. light.
c. smoke.
d. water vapor.

64. light

65. A(n) _________________ is NOT homogeneous.
a. suspension
b. element
c. compound
d. solution

66. suspension