Which 1 of the following animals is not correctly matched to its breathing part?
| Animals
| Breathing parts
|
(1)
| Mud skipper
| Gills
|
(2)
| Dog
| Lungs
|
(3)
| Seal
| Lungs
|
(4)
| Whale
| Gills
|
Your answer=D,
Correct answer= D,
- The table below shows 4 households, A, B, C and D trying to save water over a period of 4 months. The table shows how much water each household had been using each month.
Which family appears to have been the least effective in its attempts to save water over the 4 months?
| Amount of water used each month (m3)
|
| January
| February
| March
| April
| 17
| 17 | 18
| 19
| 15
| 14
| 15
| 14
| 18
| 19
| 15
| 14
| 16
| 16
| 15
| 15
|
|
Your answer=A,
Correct answer= A,
- Su Lin wants the water in the glass to dry up as quickly a possible.
She should ________________________________________.
Your answer=B,
Correct answer= B,
- Air is matter because it _________________.
A: has mass
B: occupies space
C: cannot be compressed
Your answer=B,
Correct answer= B,
- Which 1 of the following is not a matter?
Your answer=C,
Correct answer= C,
- A group of scientists discovered that certain stretches of the river were polluted with toxic chemicals. Which factory(ies) is/are most likely responsible for the water pollution?
Your answer=B,
Correct answer= B,
- Living things cannot survive without water.
Why is water important to living things?
A: Water is home to many living things.
B: Water is needed by living things to carry out life processes.
C: Water is needed by green plants to make food.
Your answer=A,
Correct answer= D,
- Jim added some hot water into a beaker of ice.
Which of the following statement is correct?
A: The ice gains heat and melts faster.
B: The hot water loses heat and melts the ice.
C: The ice changes from solid state to liquid state.
Your answer=D,
Correct answer= D,
- An empty glass with a piece of tissue paper stuck to its inner surface was lowered into a basin of water. The diagram below shows what was observed when the glass was fully submerged.
What does the experiment show?
Your answer=B,
Correct answer= B,
- John conducted an experiment to find out if carbon dioxide is given off by the mouse during respiration.
Which 1 of the following observations would he make after 1 hour?
| Limewater in flask A
| Limewater in flask B
|
(1)
| Remained clear
| Turned chalky
|
(2)
| Turned chalky
| Remained clear
|
(3)
| Remained clear
| Remained clear
|
(4)
| Turned chalky
| Turned chalky
|
Your answer=B,
Correct answer= B,