Chapter 6 & 7

Which one of the mixtures below is a solid/ solid mixture?

• a mixture of honey and water

• a mixture of salt and black pepper

• a mixture of steel clips and water

• a mixture of sand and oil

The example of a solid/liquid mixture is..

• a mixture of stones and nickel keys

• a mixture of sugar and salt

• a mixture of sand and buttons

• a mixture of water and iron thumbtacks

Materials in a mixture can be phyysically separated. Which one below is a physical separation?

• burning paper

• baking dough into bread

• filtering sand from water

• mixing vinegar and baking soda

What tool can be used to break down clumps in flour to make the cake mixture more even?

• sieve

• filter paper

• magnet

• funnel

A mixture of all and ... contains liquid and solid.

• syrup

• stones

• water

• carbon dioxide

What happens to the properties of materials in a mixture?

• The materials undergo a change after mixing

• The materials disappear and create a new substance.

• The properties of the materials remain the same after mixing.

• The properties of all materials become identical after mixing

Which method below cannot separate a mixture of aluminum rings and water?

• sieving

• handpicking

• filtering

• magnetic separation

What tool can be used to separate a mixture of plastic beads and glass marbles that have different sizes?

• filter paper

• sieve

• tissue paper

• magnet

Selvi poured glass marbles and beads into a box. After shaking the box, the glass marbles and beads still looked the same. What can she conclude from this activity?

• Each material in a mixture generally keeps its own properties.

• The marbles disappeared after being mixed with the beads.

• The properties of the marbles and beads changed after mixing.

• A new substance was formed when the marbles and beads were mixed.

Which mixture below can be separated using filter paper?

• a mixture of lentils and sand

• a mixture of salt water

• a mixture of sugar water

• a mixture of mung beans and water