Mixtures and Separation Techniques

A mixture of two liquids can be said to be _________.

• soluble or insoluble

• miscible or immiscible

When a solid and liquid substances are combined together, a ______ is formed.

• problem

• portion

• solution

When a solid dissolves in water, that solution is said to be _______.

• soluble

• insoluble

When Ariana and Janice were done playing tag, they were tired and needed a sugar solution. So they put five cubes of sugar into their cups of water. What kind of solution did they form?

• miscible

• soluble

• insoluble

• immiscible

Ikwuemose loves wine. But when he opened his bottle of wine, he realized it was too sweet. So he diluted it with water. What kind of mixture did he form?

• soluble

• insoluble

• miscible

• immiscible

Esther is hungry and she decided to drink garri. She poured a cup of garri in her cereal bowl and poured water into it. Leaving it on the table, she went into the kitchen to get the sugar bowl. By the time she returned, the garri _________.

• was floating in the bowl

• was moving around the bowl

• had dissolved in the water

• had settled at the bottom of the bowl

What kind of mixture did Esther make?

• soluble

• insoluble

• miscible

• immiscible

Moyin wants to bake cup cakes. But when she brought out the flour from the cupboard, she realized that her twin brother Moyo had emptied his coco pops into the flour container. What method of separation will Moyin use to separate the mixture?

• seiving

• filtration

• decantation

• use of magnet

Kitan and Abdurrahman have a mixture of sand and iron filing. How on earth are they going to separate them because the iron filing looks just like sand. By _____.

• filtration

• decantation

• use of magnet

• hand picking

Kendra, Titobi, Nichole and Somkenechi have a jar of multi coloured gum balls. Kendra wanted the red ones, Titobi wanted the green ones, Nichole wanted the yellow ones, and Somokenechi wanted the blue ones. How are they going to separate the gum balls?

• by decantation

• by hand picking

• by sieving

• by use of magnet