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=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,
- 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=B,
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=B,
Correct answer= D,
- A girl observed that a fruit was thorny and had an unpleasant smell. Name all the sense that can help her to male these observations.
A: Sense of smell
B: Sense of sight
C: Sense of taste
D: Sense of touch
Your answer=C,
Correct answer= C,
- Which of the following are some causes of water pollution?
A: Oil spills
B: Deforestation
C: Rubbish thrown from a ship
D: A gardener uses insecticide near a pond
Your answer=D,
Correct answer= D,
- What was the room temperature?
Your answer=B,
Correct answer= C,
- Selina did an experiment to find out the properties of solids X, Y and Z. The result of her experiment is shown in the table below.
Solids
| X
| Y
| Z
|
Does it become flat when hit?
| No
| Yes
| No
|
Does it break into pieces when dropped?
| Yes
| No
| No
|
Is it wrapped?
| Yes
| Yes
| Yes
|
In what ways are solids X and Z similar?
A: They both do not become flat when hit.
B: They both break into pieces when dropped.
C: They both are waterproof.
Your answer=A,
Correct answer= C,
- The table below shows the number of seedlings planted in a plot of land over a period of 2 weeks.
Days
| Number of seedlings
|
1
| 80
|
6
| 63
|
10
| 41
|
14
| 28
|
What could have caused the changes in the number of seedlings over the 2 weeks?
A: A drop in the supply of water to these seedlings.
B: A decrease in the number of animals feeding on the seedlings.
C: Regular rainfall resulting in the plants getting enough water.
D: Lack of nutrients in the soil.
Your answer=B,
Correct answer= B,
- Mary poured some icy cold soft drink in a jar, covered it with a metal lid and placed it on a table with a thin glass top as shown below. At which of the following parts would she observe tiny water droplets after 5 minutes?
Your answer=C,
Correct answer= C,