Separation Technique 1 (Filtration-distillation)

Sand water was filtered using filter paper. The sand was trapped in the filter paper. The sand is the ________.

Sand water was filtered using filter paper. The water passed through the filter paper easily. The water is the ________.

Sand mixed with saltwater was filtered using filter paper. Identify the filtrate.

• Sand only.

• Salt and water only.

• Water only.

• Salt only.

Real life: For filter coffee, hot water is poured over coffee powder. What is the filtrate made up of?

• coffee powder only.

• coffee powder and water only.

• Water only.

• soluble coffee and water only.

Saltwater is heated in an evaporating dish. What is left behind in the dish after some time?

• Saltwater

• Water

• Salt

• Nothing

Salt is left behind in the evaporating dish as ...

• Salt and water have the same boiling point.

• Water has a higher boiling point than salt.

• Salt has a higher boiling point than water.

In crystallisation, the solution is heated until a_______ solution is formed.

The saturated solution is to be heated more for crystals to form.

• True

• False

The crystals are removed via _________

The crystals are washed with hot water. Pat dry the crystals with filter paper.

• True

• False