A beaker containing water at 10° C was left on a table at room temperature. After 5 minutes, water droplets were observed on the outer surface of the beaker.
What inferences can be made based on the experiment above?
A: The room temperature is higher than 10° C.
B: Condensation has taken place.
C: The water droplets come from the water in the beaker.
Your answer=A,
Correct answer= A,
- A glass of milk has the same volume as a block of butter.
They both __________________________________.
Your answer=D,
Correct answer= D,
- In the morning, Julia noticed water droplets on the outside of the cars even though it did not rain the night before.
Which 1 the following statements explains what happened?
Your answer=B,
Correct answer= B,
- The diagram below shows the container with Substance X when placed in different positions.
Based on the diagram above, which of the following statement(s) is/are definitely true?
A: X is a gas.
B: X can be compressed.
C: X occupies space.
Your answer=A,
Correct answer= A,
- 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,
- Study the diagram below carefully and identify the correct parts, P, Q and R of the plant.
| P
| Q
| R
|
(1)
| Stem
| Fruit
| Leaf
|
(2)
| Root
| Leaf
| Stem
|
(3)
| Leaf
| Stem
| Fruit
|
(4)
| Fruit
| Flower
| Root
|
Your answer=B,
Correct answer= B,
- Water will ______________ at the temperature 0° C.
A: melt
B: freeze
C: evaporate
D: condense
Your answer=A,
Correct answer= D,
- 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,
- 4 glass containers, A, B, C and D, were each filled with 200cm3 of water as shown below.
In which container will the water evaporate the fastest?
Your answer=B,
Correct answer= B,
- The graph below shows the number of fishes in ponds, A, B, C and D, over a period of 6 months.
Which pond contains water that is most likely not polluted?
Your answer=A,
Correct answer= A,