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PS CH 2 Test (14-15)
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  • 1. Salty water is
A) a homogenus mixture.
B) a heterogeneous mixture.
C) an element.
D) a compound.
  • 2. Sand water is
A) an element.
B) a compound.
C) a heterogeneous mixture.
D) a homogeneous mixture.
  • 3. Oxygen is
A) a homogeneous mixture.
B) a heterogeneous mixture.
C) a compound.
D) an element.
  • 4. Vegetable soup is
A) an element.
B) a heterogeneous mixture.
C) a compound.
D) a homogeneous mixture.
  • 5. Gatorade is
A) a compound.
B) a homogeneous mixture.
C) an element.
D) a heterogeneous mixture.
  • 6. Iron is
A) a compound.
B) a homogeneous mixture.
C) an element.
D) a heterogeneous mixture.
  • 7. Sodium benzoate is
A) an element.
B) a homogeneous mixture.
C) a compound.
D) a heterogeneous mixture.
  • 8. Stainless steel is
A) a compound.
B) a heterogeneous mixture.
C) a homogeneous mixture.
D) an element.
  • 9. A bag of trail mix is
A) a heterogeneous mixture.
B) an element.
C) a compound.
D) a homogeneous mixture.
  • 10. An aquarium with a large variety of fish is
A) a heterogeneous mixture.
B) an element.
C) a homogeneous mixture.
D) a compound.
  • 11. Cadmium is
A) an element.
B) a compound.
C) a homogeneous mixture.
D) a heterogeneous.
  • 12. Neon is
A) a homogeneous mixture.
B) an element.
C) a heterogeneous mixture.
D) a compound.
  • 13. Air is
A) a homogeneous mixture.
B) a heterogeneous mixture.
C) a compound.
D) an element.
  • 14. Dihydrogen monoxide is
A) an element.
B) a compound.
  • 15. Bronze is
A) a compound.
B) an element.
C) a heterogeneous mixture.
D) a homogeneous mixture.
  • 16. Water that is cloudy with fine silt
A) distillation is the best method for separating the parts.
B) using a sieve is the best method for separating the parts
C) evaporation is the best method for separating the parts
D) filtration is the best method for separating the parts
  • 17. Water and alcohol
A) distillation is the best method for separating the parts.
B) decanting is the best method for separating the parts
C) evaporation is the best method for separating the parts
D) using a sieve is the best method for separating the parts
  • 18. Colors that make up black ink
A) decanting is the best method for separating the parts
B) distillation is the best method for separating the parts.
C) chromatography
D) using a sieve is the best method for separating the parts
  • 19. Coffee grounds and water
A) distillation is the best method for separating the parts.
B) using a sieve is the best method for separating the parts
C) filtration is the best method for separating the parts
D) decanting is the best method for separating the parts
  • 20. Cat poo from the nasty litter box
A) decanting is the best method for separating the parts
B) distillation is the best method for separating the parts.
C) filtration is the best method for separating the parts
D) pick out the parts
  • 21. Oil and heavy rocks
A) distillation is the best method for separating the parts.
B) chromatography
C) evaporation is the best method for separating the parts
D) decanting is the best method for separating the parts
  • 22. Salt and water
A) decanting is the best method for separating the parts
B) using a sieve is the best method for separating the parts
C) distillation is the best method for separating the parts.
D) evaporation is the best method for separating the parts
  • 23. Small pieces of dirt from large grapes
A) distillation is the best method for separating the parts.
B) decanting is the best method for separating the parts
C) using a sieve is the best method for separating the parts
D) chromatography
  • 24. Density
A) is a physical property.
B) is a chemical property.
  • 25. Flammability
A) is a chemical property.
B) is a physical property.
  • 26. Mass
A) is a chemical property.
B) is a physical property.
  • 27. Color
A) is a physical property.
B) is a chemical property.
  • 28. The ability to react with water
A) is a chemical property.
B) is a physical property.
  • 29. The ability to react with oxygen
A) is a physical property.
B) is a chemical property.
  • 30. Weight
A) is a chemical property.
B) is a physical property.
  • 31. Conductivity
A) is a physical property.
B) is a chemical property.
  • 32. Malleability
A) is a physical property.
B) is a chemical property.
  • 33. Ductility
A) is a physical property.
B) is a chemical property.
  • 34. Reacts with any other substance
A) is a physical property.
B) is a chemical property.
  • 35. Magnetic
A) is a chemical property.
B) is a physical property.
  • 36. Brittleness
A) is a physical property.
B) is a chemical property.
  • 37. The ability to react with acid
A) is a chemical property.
B) is a physical property.
  • 38. Texture
A) is a physical property.
B) is a chemical property.
  • 39. Which one of these indicates a chemical change has occurred?
A) An empty coke can crumbles when it is stepped upon.
B) The red T-shirt fades to pink when washed in hot water.
C) Sand sinks to the bottom of a glass of water.
D) Bubbles are produced when vinegar is mixed with baking soda.
  • 40. Which one of these indicates a chemical change has occurred?
A) The surface of an electric stove gets hot when the stove eye is turned on.
B) Snow falls from the sky when the temperature drops to 20 degrees Farenheit.
C) The wax in a birthday candle burns.
D) A tan colored wall is turned blue when it is painted with blue paint.
  • 41. Which one of these indicates a chemical change has occurred?
A) An electric heating pad gets warm when it is turned on.
B) Bubbles come out of the water in a pan when it boils.
C) A large slab of aluminum is pressed into thin foil.
D) A white salty substance forms on the bottom of a coke can that has been left in a bucket of water.
  • 42. Which one of these indicates a chemical change has occurred?
A) Liquid water turns into solid ice when placed in the freezer.
B) Cheese melts on a hot hamburger.
C) A white marshmallow turns golden brown after roasting over a fire.
D) A banana will become very runny when crushed in a blender.
  • 43. Which of these is a physical change?
A) frying an egg
B) sharpening a pencil
C) burning a garbage pile
D) exploding dynamite
  • 44. Which of these is a chemical change?
A) burning gasoline in the car
B) the car window get frosted on a cold winter morning
C) crumpling the metal door of a car during an accident
D) the car gets hot after sitting in the sunny parking lot all day
  • 45. What type of change is digesting food?
A) chemical change
B) physical change
  • 46. What type of change is mixing cookie dough?
A) physical change
B) chemical change
  • 47. This type of mixture consists of two liquids that DO NOT dissolve in one another.
A) immiscible
B) miscible
  • 48. This type of mixuture consists of two liquids that DO dissolve in one another.
A) miscible
B) immiscible
  • 49. What type of mixture is oil and water?
A) miscible
B) immiscible
  • 50. What type of mixture is alcohol and water?
A) miscible
B) immiscible
Bu testleri alan öğrenciler ayrıca şunları da aldılar: :
Physical and chemical changes quiz cbse/science/class7
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