Understand the science behind daily life through questions covering health, energy, environment, inventions and natural phenomena.
Questions are tracked as practiced when you open Show Answer & Explanation. Tracking stays only in this browser tab and no subject-test result is saved.
Which common gas leak hazard in homes is often detected by its distinctive rotten egg smell added intentionally for safety?
The disease known as 'German measles' is otherwise called:
Which unit measures the frequency of sound waves typically expressed as cycles per second?
Which everyday device measures electrical current flowing through a circuit?
Which law explains the equal and opposite reaction observed when a rocket launches?
Which everyday material is used as an X-ray absorber to protect the body during medical scans?
Which stomach enzyme is primarily responsible for breaking down proteins into smaller peptides?
Which type of energy transformation occurs when a battery powers an electric device?
Which everyday observation shows that white light is composed of multiple colours?
Which everyday material is commonly used as a natural disinfectant due to its antimicrobial properties?
Which instrument is used to measure wind speed?
Which gas makes up approximately 0.04 percent of Earth's atmosphere and is essential for plant photosynthesis?
Which everyday material acts as a natural antibacterial due to its low water activity and acidic pH?
Which scientist is known as the father of modern genetics for his work on pea plant inheritance?
Which common household acid is found in vinegar and gives it its sour taste and smell?
Which atmospheric phenomenon causes the sky to appear reddish orange during sunrise and sunset?
Which part of the human brain is primarily responsible for controlling balance and coordination?
Which gas is most responsible for causing acid rain when it reacts with atmospheric moisture?
Which layer at the back of the eye contains photoreceptor cells called rods and cones that detect light?