Which 1 of the following diagrams correctly shows the exchange of gases between the leaf of a plant and the surrounding air on a dark night?
Your answer=,
Correct answer= C,
- Why is the water cycle important to living things?
Your answer=,
Correct answer= D,
- Sally puts 4 substances into round, plastic containers. Which of the following does not take the shape of its container?
A: Oil
B: Sand
C: Marbles
D: Chicken soup
Your answer=,
Correct answer= C,
- Shawn lighted a candle in a basin of water and covered it with a bell jar as shown in the diagram below.
After a short moment, the candle flame flickered and went out.
What caused the candle flame to go out?
Your answer=,
Correct answer= B,
- 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=,
Correct answer= D,
- Study the classification chart below carefully.
Which 1 of the above materials is wrongly classified?
Your answer=,
Correct answer= A,
- Gordon wanted to find out what type of soil was suitable for growing roses. He planted 3 rose plants of similar size in 3 pots, X, Y and Z.
| Pot X
| Pot Y
| Pot Z
|
Material of pot
| Plastic
| Plastic
| Plastic
|
Type of soil
| Garden soil
| Sand
| Clay
|
Amount of water used everyday
| 250 cm3
| 300 cm3
| 350 cm3
|
The 3 plants were placed in the garden as shown below.
Gordon's father told him that he had not carried out a fair test as not all the controlled variables were kept the same.
Which of the following should be kept the same?
A: Type of soil
B: Size of pot
C: Amount of water
Your answer=,
Correct answer= D,
- Ali heated some tap water in a beaker. He allowed it to boil for 5 minutes and then left it in the beaker to cool to room temperature. He recorded the temperature at 5-minute intervals.
Which 1 of the following graphs would correctly represent his data?
Your answer=,
Correct answer= D,
- Su Lin wants the water in the glass to dry up as quickly a possible.
She should ________________________________________.
Your answer=,
Correct answer= B,
- Which of the statement is/are true about all matter?
A: Matter has volume
B: Matter can be compressed.
C: Matter can be seen.
Your answer=,
Correct answer= A,