PTS 2 Prep Year 5

What is a mixture?

• A pure substance

• A combination of two or more substances

• A chemical reaction between two substances

• A single element

Which of the following is an example of a mixture?

• Saltwater

• Pure gold

• Distilled water

• Oxygen gas

Which method is used to separate large solid particles from a mixture?

• Magnetism

• Sieving

• Evaporation

• Decantation

Which of these mixtures can be separated using filtration?

• Sand and water

• Salt and water

• Oil and water

• Iron and sand

Which process is used to separate a dissolved solid from a liquid?

• Sieving

• Filtration

• Evaporation

• Magnetism

What is the best method to separate iron nails from sand?

• Filtration

• Sieving

• Using a magnet

• Decantation

Which of these is an example of a soluble substance?

• Sand

• Sugar

• Pebbles

• Wood

Which two substances can be separated by decantation?

• Oil and water

• Sugar and water

• Salt and water

• Iron and sand

What is the role of a solvent in a solution?

• It gets dissolved

• It dissolves the solute

• It forms a new solid

• It becomes a gas

Which factor will make a solute dissolve faster?

• Using cold water

• Stirring the mixture

• Adding more solute

• Keeping the mixture still