Extracting Salt from Wax Quiz

What is the main challenge presented in the video regarding the block of blue wax?

• Making the wax dissolve in water

• Melting the wax without losing its color

• Extracting salt crystals without damaging the wax

• Changing the color of the wax

Which property of wax is crucial for the solution to work?

• Wax dissolves in water

• Wax is heavier than water

• Wax is transparent

• Wax repels water

Why is water used in the process of separating salt from wax?

• Because water changes the color of salt

• Because water is a good solvent for wax

• Because water can melt the wax

• Because water dissolves salt but not wax

What was observed on the wax after it was left in water overnight?

• The wax completely dissolved

• The wax changed color

• Holes appeared where the salt crystals were

• The wax became harder

What should be done if some salt crystals remain after the initial soaking?

• Add more salt to the wax

• Heat the wax to remove the remaining salt

• Use a knife to scrape off the salt

• Leave the wax in water for a longer period