Separating materials

What method can we use to separate materials of different sizes?

• Filtering

• Sieving

• Evaporating

• Decanting

Which of the following is an example of insoluble material?

• Salt and water

• Sugar and water

• Flour and water

• Coffee and water

What method could we use to separate insoluble materials?

• Decanting

• Filtering

• Dissolving

• Evaporating

What process would help us reverse (undo) mixing of soluble substances?

• Sieving

• Filtering

• Decanting

• Evaporating

What energy source do we need to evaporate a liquid?

• Electricity

• Heat

• Light

• Gas

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

How would you separate stones, sand and salt?

How could you speed up the process of dissolving?

• Use more water

• Use warmer water

• Use more salt

• Use colder water

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of these is a reversible change?

• Melting chocolate

• Baking cakes

• Burning wood

• Cutting paper

Which of these is an irreversible change?

• Mixing salt and water

• Burning toast

• Melting wax

• Mixing sugar and water