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PS CH 2 Test (14-15)
asalt water
  • 1. Salty water is
A) a compound.
B) a homogenus mixture.
C) a heterogeneous mixture.
D) an element.
asand water
  • 2. Sand water is
A) an element.
B) a homogeneous mixture.
C) a compound.
D) a heterogeneous mixture.
aoxygen
  • 3. Oxygen is
A) an element.
B) a heterogeneous mixture.
C) a homogeneous mixture.
D) a compound.
aveg soup
  • 4. Vegetable soup is
A) an element.
B) a compound.
C) a heterogeneous mixture.
D) a homogeneous mixture.
agator
  • 5. Gatorade is
A) a heterogeneous mixture.
B) an element.
C) a homogeneous mixture.
D) a compound.
arion
  • 6. Iron is
A) a homogeneous mixture.
B) a heterogeneous mixture.
C) an element.
D) a compound.
asod ben
  • 7. Sodium benzoate is
A) a heterogeneous mixture.
B) a homogeneous mixture.
C) a compound.
D) an element.
astainless
  • 8. Stainless steel is
A) a homogeneous mixture.
B) an element.
C) a heterogeneous mixture.
D) a compound.
atrail mix
  • 9. A bag of trail mix is
A) an element.
B) a compound.
C) a homogeneous mixture.
D) a heterogeneous mixture.
afish
  • 10. An aquarium with a large variety of fish is
A) an element.
B) a heterogeneous mixture.
C) a homogeneous mixture.
D) a compound.
acad
  • 11. Cadmium is
A) a compound.
B) a homogeneous mixture.
C) an element.
D) a heterogeneous.
aneon
  • 12. Neon is
A) a compound.
B) an element.
C) a homogeneous mixture.
D) a heterogeneous mixture.
aair
  • 13. Air is
A) a compound.
B) a heterogeneous mixture.
C) an element.
D) a homogeneous mixture.
awater
  • 14. Dihydrogen monoxide is
A) a compound.
B) an element.
abronze
  • 15. Bronze is
A) a compound.
B) a heterogeneous mixture.
C) an element.
D) a homogeneous mixture.
afilter
  • 16. Water that is cloudy with fine silt
A) using a sieve is the best method for separating the parts
B) distillation 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
adist
  • 17. Water and alcohol
A) evaporation 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) distillation is the best method for separating the parts.
achrom
  • 18. Colors that make up black ink
A) decanting is the best method for separating the parts
B) chromatography
C) distillation is the best method for separating the parts.
D) using a sieve is the best method for separating the parts
acoff
  • 19. Coffee grounds and water
A) filtration is the best method for separating the parts
B) using a sieve is the best method for separating the parts
C) decanting is the best method for separating the parts
D) distillation is the best method for separating the parts.
alitter
  • 20. Cat poo from the nasty litter box
A) pick out the parts
B) filtration is the best method for separating the parts
C) distillation is the best method for separating the parts.
D) decanting is the best method for separating the parts
arocks
  • 21. Oil and heavy rocks
A) distillation is the best method for separating the parts.
B) chromatography
C) decanting is the best method for separating the parts
D) evaporation is the best method for separating the parts
asaltev
  • 22. Salt and water
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
agrap
  • 23. Small pieces of dirt from large grapes
A) chromatography
B) decanting is the best method for separating the parts
C) using a sieve is the best method for separating the parts
D) distillation is the best method for separating the parts.
aden
  • 24. Density
A) is a physical property.
B) is a chemical property.
aflamm
  • 25. Flammability
A) is a chemical property.
B) is a physical property.
amas
  • 26. Mass
A) is a physical property.
B) is a chemical property.
acol
  • 27. Color
A) is a physical property.
B) is a chemical property.
asodwate
  • 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 physical property.
B) is a chemical 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 chemical property.
B) is a physical property.
  • 35. Magnetic
A) is a physical property.
B) is a chemical property.
  • 36. Brittleness
A) is a physical property.
B) is a chemical property.
  • 37. The ability to react with acid
A) is a physical property.
B) is a chemical 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) The red T-shirt fades to pink when washed in hot water.
B) Sand sinks to the bottom of a glass of water.
C) An empty coke can crumbles when it is stepped upon.
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) A tan colored wall is turned blue when it is painted with blue paint.
C) Snow falls from the sky when the temperature drops to 20 degrees Farenheit.
D) The wax in a birthday candle burns.
  • 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) A banana will become very runny when crushed in a blender.
B) Cheese melts on a hot hamburger.
C) A white marshmallow turns golden brown after roasting over a fire.
D) Liquid water turns into solid ice when placed in the freezer.
  • 43. Which of these is a physical change?
A) sharpening a pencil
B) frying an egg
C) exploding dynamite
D) burning a garbage pile
  • 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) the car gets hot after sitting in the sunny parking lot all day
D) crumpling the metal door of a car during an accident
  • 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) immiscible
B) miscible
  • 49. What type of mixture is oil and water?
A) miscible
B) immiscible
  • 50. What type of mixture is alcohol and water?
A) immiscible
B) miscible
Uczniowie wykonujący ten test biorą również :
Physical and chemical changes quiz cbse/science/class7
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