Answer: Answer is C, plants always grow towards the sun in order to capture more sunlight for photosynthesis.
PSLE Science question of the week #2:
Athlete’s foot
Question: Student A has a medical condition in which fungus grows on his feet. The doctor advised student A to wear slippers instead of covered shoes. Explain how wearing slippers helps reduce the growth of fungus on the feet.
Option A: Wearing slippers allows the student to air his feet and prevent growth of fungus
Option B: Wearing slippers keeps the student’s feet dry, as fungus needs water to grow
Option C: Wearing slippers instead of shoes as fungus likes to grow on socks
Option D: Wearing slippers exposes the feet to the sun, and fungi do not like sunlight
Answer: Answer is B! Fungi needs water to grow, so it prefers damp environment. Wearing slippers allowed sweat to evaporate, keeping the feet dry and free of fungi.
PSLE Science question of the week #3
Question: A man used a hammer to drive a nail into a piece of wood. Which factor will NOT affect how deep the nail goes into the wood?
Option A: Mass of the man
Option B: Mass of the nail
Option C: Friction between the nail and the wood
Option D: Height at which the hammer was raised
Post your answer in the comments section below!
Answer: Answer is B, mass of the nail is unrelated to the amount of force or energy the man needs to hit the nail.
PSLE Science question of the week #4
When Student A closed the switch, the bulb blew. Which one of the following would have prevented the bulb from blowing?
Option A: Using fewer batteries
Option B: Closing the switch more quickly
Option C: Changing the direction of the switch
Option D: Changing the direction of all batteries
Answer: Answer is A! Using too many batteries can cause the bulb to fuse due to too much current flowing through the bulb, and heating up the filament.
