Exam Topics

Question 1

What is this separation technique?
Equipment: Beaker, Conical flask, Filter paper, Filter funnel.

Answer 1

Filtration

Question 2

What is this separation technique?
Equipment: Bunsen burner, Tripod, Gause mat, Evaporating basin.

Answer 2

Evaporation

Question 3

What is this separation technique?
Equipment: Ziplock bag, Magnet, Evaporating basin.

Answer 3

Magnetic Separation

Question 4

What is this separation technique?
Equipment: Separating Funnel, Ring clamp, Beaker, Retort stand.

Answer 4

Decantation

Question 5

How does Filtration work?

Answer 5

Salt is soluble in water while sand is not, and sand is too big to pass through the filter paper while salt water is not.

Question 6

How does Evaporation work?

Answer 6

Salt has a much higher boiling point than water, so when water turns to steam salt is left behind.

Question 7

How does Magnetic Separation work?

Answer 7

Iron is magnetic and is attracted to the magnet, while salt and sand are not.

Question 8

How does Decantation work?

Answer 8

Water and oil are immiscible (do not mix) and water sinks to the bottom as it is more dense than oil.