Luke scratched a plastic ruler with a metal key and noticed a deep scratch on the ruler. This shows that the metal key is __________ than the plastic ruler.
Show Worked Solution
Worked Solution
Step 1: Hardness is the ability of a material to resist being scratched.
Step 2: A harder material will scratch a softer material.
Step 3: Since the key scratched the ruler, the key is harder.
Correct answer: harder
Want more questions like this? Superholic Lab has 10,000+ MOE-aligned questions with full worked solutions.
Start Free Trial — 7 Days Free