Mixtures & Separation Quiz

What is a mixture?

• Something that cannot be separated

• A pure substance

• Two or more substances mixed together but not chemically combined

• A single element

Which mixture can be separated using a magnet?

• Iron filings and sand

• Sugar and water

• Sand and water

• Oil and water

Which property tells us how heavy something is for its size?

• Density

• Solubility

• Particle size

• Temperature

If sugar disappears when mixed with water, it is because sugar is...

• Soluble

• Dense

• Magnetic

• A liquid

Which method is best to separate sand from water?

• Filtration

• Evaporation

• Magnetic separation

• Sieving

What tool is often used for sieving?

• Strainer

• Funnel

• Magnet

• Spoon

What happens in evaporation?

• Liquid turns into gas

• Solids disappear

• Solids become smaller

• Water becomes colder

Which method uses gravity/density to separate liquids and solids?

• Decantation

• Filtration

• Sieving

• Evaporation

What property helps us separate objects using a magnet?

• Magnetic attraction

• Solubility

• Particle size

• Density

Which is an example of a heterogeneous mixture?

• Sand and stones

• Salt and water

• Milk

• Vinegar