ICSE Class 6 Chemistry - Water - Test 1 (Basic)
1. Water is important because it is needed by:
A. Only machines
B. Living things
C. Only rocks
2. Which of the following is a natural source of water?
A. Rain
B. Plastic bottle
C. Steel spoon
3. Water can exist in how many common states?
A. One
B. Two
C. Three
4. The solid form of water is called:
A. Steam
B. Ice
C. Rainwater
5. The gaseous form of water is:
A. Water vapour
B. Ice
C. Snow only
6. When water is cooled in a freezer, it changes into:
A. Steam
B. Sand
C. Ice
7. Ice changes into liquid water by the process of:
A. Freezing
B. Melting
C. Rusting
8. When water is heated strongly, it changes into:
A. Water vapour
B. Iron
C. Salt
9. Wet clothes dry mainly because of:
A. Freezing
B. Burning
C. Evaporation
10. Water droplets on the outside of a cold glass are formed by:
A. Melting
B. Condensation
C. Burning
11. The continuous movement of water in nature is called the:
A. Water cycle
B. Food chain
C. Rock cycle only
12. Clouds are mainly formed from:
A. Iron pieces
B. Sand grains
C. Tiny water droplets
13. Water that is safe for drinking is called:
A. Muddy water
B. Potable water
C. Sea water only
14. Which water is not safe to drink directly?
A. Muddy water
B. Clean boiled water
C. Filtered water
15. Boiling water helps to:
A. Add mud to water
B. Make water salty
C. Kill many germs
16. Which method can remove mud particles from water?
A. Melting
B. Filtration
C. Freezing only
17. Sea water tastes salty because it contains:
A. Dissolved salts
B. Only oxygen
C. Pure ice
18. Which of the following is a common use of water?
A. Making stones disappear
B. Producing shadows
C. Cooking food
19. Which action helps save water?
A. Leaving taps open
B. Closing taps after use
C. Throwing waste into rivers
20. Water pollution means:
A. Harmful substances making water dirty
B. Water becoming useful for drinking
C. Water turning into pure gold