year 7 chemistry

What is a pure substance?

• Something containing only substance

• Something containing 2 or more substances

• Something that has been mixed with water

• Something that has never been changed by a human

What is a mixture?

• Something only containing one substance

• Something very dense

• 2 or more substances mixed together with different particals

• 2 or more substances mixed together with the same partical

Witch is an example of pure substance?

• Pancakes

• Soft drink

• Grass

• Water

Witch is an example of a mixture?

• Water

• Pancakes

• Oxygen

What is a solute?

• The thing being dissolved

• The thing things are dissolving in

• Something that can not be dissolved

• When two 2 substances mix and do no separate

What is a Solvent

• The thing that things are dissolving in

• The thing being dissolved

• a mixture that gets cold

• something that can not dissolve

What is a concentrated solution?

• has a small amount of dissolved solute

• has so much solute that no more can be dissolved

• has no solute

• has a large amount of dissolved solute

What is a dilute solution?

• has a small amount of dissolved solute

• has so much solute no more can be dissolived

• Has large amount of dissolved solute

• has no solute

How dose decanting work?

• water is added to mixture causing the more dense particals to sink and the less dense ones to float

• water is added to mixture causing the more dense particals to float and the less dense ones to sink

• water is added to mixture causing all the particals to sink due to less density

• water is added to mixture causing all the particals to float due to less density

What is Sediment?

• During decanting, sediment floats due to a low density

• During decanting, sediment sinks due to a high density

• During decanting, sediment sinks due to a low density

• During decanting, sediment sinks due to a average density