Sorting Materials into Groups (HBBVS)

Casual Mode - Take your time!

1 / 15
✓
Correct
0
✗
Incorrect
0
★
Score
0%
Multiple Choice

What is annealing of iron?

  1. Breaking an iron rod
  2. Repeatedly heating and cooling an iron rod to increase strength
  3. Coating an iron rod with another metal
  4. Rusting of iron due to water
  5. NA
Change Mode