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- 1. Multiple Choice
Which of the following is true about freezing point of pure water and salt solution?
Pure Water is below 0 oC , Salt solution is 0 oC
Pure Water is above 0 oC , Salt solution is 0 oC
Pure Water is 0 oC , Salt solution is below 0 oC
Pure Water is 0 oC , Salt solution is above 0 oC
- 2. Multiple Choice
Which of the following methods of water purification can eliminate odour?
Boiling
Distillation
Chlorination
Sedimentation
- 3. Multiple Choice
Which of the followings will occur when salt is added to distilled water?
Increase in density
Lower the boiling point
Lower the freezing point
Decrease in density
- 4. Multiple Choice
Alina wants to dissolve jelly strips in the water. Which of the following action helps to dissolve the jelly strips faster?
Use less quantity of water
Add sugar into water
Tie some jelly strips together
Cut the jelly strips shorter
- 5. Multiple Choice
The following list is the characteristics of a liquid:
- Does not allow light to penetrate
- Leaves a residue when filtrated
- Cloudy
Suspension
Dilute solution
Concentrated solution
Saturated solution
- 6. Multiple Choice
Choose elements found in water molecules
Oxygen
Carbon
Nitrogen
Hydrogen
- 7. Multiple Choice
Kills microorganism found in water.
Chlorination
Filtration
Distillation
Oxidation
- 8. Multiple Choice
Eliminates suspended particles in water
Chlorination
Filtration
Distillation
Oxidation
- 9. Multiple Choice
What is (i)?
Adhesive force
Cohesive force
Attractive force
- 10. Multiple Choice
What is (ii)?
Adhesive force
Cohesive force
Attraction force
- 11. Multiple Choice
Evaporation is a process that occurs at the surface of water in which particles at the water surface that move faster will leave the liquid and evaporated.
True
False
- 12. Multiple Choice
What is the factor that has been studies in the experiment?
Surrounding temperature
Humidy
Surface area exposed
Movement of air
- 13. Multiple Choice
Which beaker will dry first?
A
B
- 14. Multiple Choice
Which ones are the factors that affect water evaporation?
Humidity
Air movement
Exposed area
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