Grade 5 Science – Change Of State Quiz

1. What is matter

anything that is tangible
Anything that has mass and occupies space
anything that solidifies
the liquid found in our mouths
Explanation:

2. List three states of matter

solid, colour, water
water, ice and steam
solid, liquid and gas
solid, waste, gas
Explanation:

3. What change of state occurs when a candle is heated

cooling
melting
solidification
refrigeration
Explanation:

4. Which processes takes place when solid changes to gas

solidification
Sublimation
melting
evaporation
Explanation:

5. The following solids melt when heated, which one does not

soap
candle wax
butter
ice
Explanation:

6. What happens when the sun heats water bodies?

solidification
evaporation
melting
condensation
Explanation:

7. The water vapour in the atmosphere ___ to form rain clouds

condenses
sublimates
evaporates
solidifies
Explanation:

8. Which of the following is not an importance of changes of state?

drying clothes by evaporation
provides rains
washing clothes
making ice cubes
Explanation:

9. When thermal energy is increased in a solid, what change in state is happening?

Freezing
Evaporation
Melting
Condensation
Explanation:

10. When thermal energy is decreased in a liquid, what change in state is happening?

Condensation
Melting
Freezing
Evaporation
Explanation:

11. When thermal energy is increased in a liquid, what change in state is happening?

Evaporation
Freezing
Condensation
Melting
Explanation:

12. When thermal energy is decreased in a gas, what change in state is happening?

Condensation
Freezing
Evaporation
Melting
Explanation:

13. What two changes of state occur when thermal energy is added to/increased in a substance?

Condensation and Evaporation
Melting and Evaporation
Freezing and Condensation
Melting and Freezing
Explanation:

14. What two changes of state occur when thermal energy is taken away/decreased in a substance?

Freezing and Condensation
Condensation and Melting
Freezing and Melting
Melting and Evaporation
Explanation:

15. When a substance changes from a solid to a liquid, this is called...

Melting
Freezing
Evaporation
Condensation
Explanation:

16. When a substance changes from a liquid to a gas, this is called...

Evaporation
Freezing
Melting
Condensation
Explanation:

17. When a substance changes from a gas to a liquid, this is called...

Melting
Condensation
Evaporation
Freezing
Explanation:

18. When a substance changes from a liquid to a solid, this is called...

Evaporation
Melting
Condensation
Freezing
Explanation:

19. A change in state from a solid to a liquid

Vaporization
Melting
Freezing
sublimation
Explanation:

20. A change in state from a liquid to a solid

sublimation
Melting
Freezing
Vaporization
Explanation:

21. A change in state from a liquid to a gas

Freezing
Melting
Vaporization
sublimation
Explanation:

22. A change in state from a solid to a gas

Freezing
Melting
Vaporization
sublimation
Explanation:

23. A change in state from the surface of a liquid to a gas

evaporation
freezing
melting
boiling
Explanation:

24. A change in state from the surface and below the surface of a liquid to a gas

freezing
melting
evaporation
boiling
Explanation:

25. A change in state of a liquid to a gas that occurs at temperatures other than the boiling point

freezing
boiling
evaporation
melting
Explanation:

26. A change in state of a liquid to a gas that occurs at the boiling point

boiling
melting
evaporation
freezing
Explanation:

27. When a solid is heated, the particles begin to .......

vibrate faster
stop moving
slower
vibrate slower
Explanation:

28. When a liquid is heated, the particles begin to

gain energy and move faster
lose energy and move faster
stop moving
gain energy and move slower
Explanation:

29. The temperature at which a crystalline solid changes from a solid to a liquid

boiling temperature
boiling point
melting point
melting temperature
Explanation:

30. The temperature at which a substance changes from a liquid to a gas

boiling temperature
melting temperature
boiling point
melting point
Explanation:

31. 0⁰C is the ________ of water

boiling point
The temperature where particles stop moving
melting point
Sublimation point
Explanation:

32. During melting a substance ........

gains thermal energy
gains chemical energy
loses thermal energy
loses chemical energy
Explanation:

33. During freezing, a substance ........

loses chemical energy
loses thermal energy
gains chemical energy
gains thermal energy
Explanation:

34. During boiling, a substance ......

loses thermal energy
gains chemical energy
loses chemical energy
gains thermal energy
Explanation:

35. During evaporation, a substance ......

gains chemical energy
loses thermal energy
loses chemical energy
gains thermal energy
Explanation:

36. During condensation, a substance

loses thermal energy
gains thermal energy
gains chemical energy
loses chemical energy
Explanation:

37. During sublimation, a substance

loses chemical energy
gains thermal energy
gains chemical energy
loses thermal energy
Explanation:

38. Temperature is ......

is the average energy due to the motion of the particles
is the total energy due to the motion of the particles
does not involve motion of the particles
measured by spring balance
Explanation:

39. Thermal energy.........

does not involve motion of the particles
is the total energy due to the motion of the particles
is the average energy due to the motion of the particles
involves evaporation
Explanation:

40. Vaporization includes both

boiling and evaporation
boiling and freezing
boiling and melting
melting and freezing
Explanation:

41. What is the process of changing from a solid state directly to a gas state called?

Evaporation
Melting
Condensation
Sublimation
Explanation:

Sublimation is the process of changing from a solid state directly to a gas state without passing through the liquid state.

42. Which of the following can change from a liquid to a gas state at room temperature?

Water
Salt
Copper
Iron
Explanation:

Water can change from a liquid to a gas state at room temperature through the process of evaporation.

43. What happens to a substance during the process of freezing?

It turns into a liquid
It disappears
It turns into a gas
It turns into a solid
Explanation:

During freezing, a substance changes from a liquid state to a solid state as it loses heat energy.

44. Which of the following processes involves the conversion of a gas to a liquid?

Solidification
Evaporation
Sublimation
Condensation
Explanation:

Condensation is the process of changing a gas to a liquid as it loses heat energy and condenses.

45. What is the process called when a liquid is heated and turns into a gas?

Condensation
Melting
Freezing
Evaporation
Explanation:

Evaporation is the process of turning a liquid into a gas when heated, usually to its boiling point.

46. What happens to the particles of a substance during the process of melting?

They gain energy and move more freely
They slow down
They vibrate in fixed positions
They grow larger
Explanation:

During melting, the particles of a substance gain energy, overcome attraction forces, and move more freely, resulting in a change from a solid to a liquid state.

47. At what temperature does water boil and change from a liquid to a gas?

25°C
100°C
0°C
50°C
Explanation:

Water boils at 100°C, and at this temperature, it changes from a liquid state to a gaseous state.

48. In which state of matter do the particles have the least energy and are closest together?

Solid
Liquid
Gas
Plasma
Explanation:

In a solid state, the particles have the least energy and are closely packed together in an organized structure.

49. Which of the following processes involves a change from a gas directly to a solid without passing through the liquid state?

Sublimation
Evaporation
Condensation
Melting
Explanation:

Sublimation is the process of changing from a gas directly to a solid without transitioning through the liquid state.

50. What is the opposite process of sublimation?

Solidification
Freezing
Deposition
Melting
Explanation:

Deposition is the opposite of sublimation and involves the direct change of a gas to a solid without becoming a liquid.