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- 1. Multiple ChoiceWhat happens in an evaporation dish?
Water stays with the mixture.
Water becomes a solid.
Water turns into water vapor and is no longer in the dish.
More water appears.
- 2. Multiple Choice
The technique of conveying clean liquid without disturbing the sediment is known as?
Decantation
Sedimentation
Condensation
Sublimation
- 3. Multiple Choice
The method used to separate chaff from the grain by wind or blowing air is called
winnowing
decantation
sedimentation
saturated solution
- 4. Multiple ChoiceHow can I get salt out of water after it has dissolved and formed a solution?
Pour it out through a screen.
You can't. It's dissolved, it's gone.
Let the water evaporate, salt will remain
Pour it through a filter
- 5. Multiple Choice
Solid solutes dissolve faster when it is
Stirred
Not Stirred
- 6. Multiple Choice
The process of converting a liquid condition to a gaseous state when heated is known as?
Condensation
Sublimation
Evaporation
Sedimentation
- 7. Multiple Choice
What are the three common states of matter?
solid
liquid
gas
water
- 8. Multiple Choice
which type of separation is this
evoporation
condensation
sedmentation
- 9. Multiple Choice
If the impurities are larger then which separation method is used?
[Assume that the impurities are not always magnetic]
Magnetic Seperation
Winnowing
Sieving
All of the above
- 10. Multiple ChoiceIn this mixture, which of the following will be the solute?The water in the glassThe glass that holds the final mixtureThe solution containing both powder and waterThe powder on the spoon
- 11. Multiple ChoiceWhich is an example of a solution?
Chex Mix
Mixed fruit
Lemonade
milk and cereal
- 12. Multiple Choice
The process by which an insoluble solid is seperated from a liquid is called
magnetisim
sieving
winnowing
filtration
- 13. Multiple Choice
which type of separation is this
stirring
solubility
decantation
- 14. Multiple Choice
Temperature has an effect on the speed a solid dissolves in water.
True
False
- 15. Multiple Choice
If a mixture contains magnetic impurities, then which separation method(s) is/are used?
Magnetic Seperation
Sieving
Winnowing
All of the above
- 16. Drop Down
The method by which stalks are beaten to separate grain seeds are called (a)
ThreshingWinnowingSievingHand Picking - 17. Drag and Drop
Salt is obtained from seawater by the process of (a)
evaporationDecantationSedimentationHand Picking - 18. Fill in the Blank
A mixture of salt and water can be separated by_________
- 19. Fill in the BlankUpload answer type
What is a mixture?
- 20. Multiple Choice
SEA WATER IS A MIXTURE OF
WATER AND COMMON SALT
WATER AND SEVERAL SALTS
WATER AND OXYGEN
- 21. Multiple ChoiceIron and copper screws could be separated using a magnet becauseiron is magnetic, copper is notcopper is magnetic, iron is notneither metal is magneticcopper screws are heavier than iron and fall off the magnet
- Answer choicesTagsAnswer choicesTags