SOF National Science Olympiad (NSO/ISO)
·
NSO Level 1
·
2016
.
Sample
Practice variant 3: Sound cannot travel through which medium?
Explanation
Explanation
Sound needs a material medium.
PRO TIP
Re-check your working by substituting the answer back into the original question.
Related Questions
In the food chain Grass → Grasshopper → Frog → Snake → Eagle, the producers (grass) contain 10,000 J of energy. Following the 10% law, how much energy is available to the snake?