Separating Mixtures and Solutions

What is the first step in separating a mixture?

• Identify the type of mixture

• Use a screen

• Evaporate the mixture

• Use filter paper

How can you separate a mixture of gravel and water?

• Using a screen

• By evaporation

• By boiling

• Using filter paper

What happens to the water when a gravel and water mixture is poured through a screen?

• It gets caught in the screen

• It evaporates

• It passes through the screen

• It forms crystals

What tool is used to separate a mixture of water and powder?

• A screen

• A magnet

• Filter paper

• A sieve

What happens to the powder when a water and powder mixture is poured through filter paper?

• It evaporates

• It gets caught in the filter paper

• It passes through the filter paper

• It dissolves

How can you separate a solution of salt and water?

• Using a screen

• By boiling

• Using filter paper

• By evaporation

What remains in the evaporation dish after the water in a salt solution evaporates?

• Salt crystals

• Gravel

• Nothing

• Powder

Tags

NGSS.MS-PS1-2

How can you determine if a clear liquid is a solution?

• By using a screen

• By filtering it

• By evaporating it

• By boiling it

What indicates that a clear liquid was a solution after evaporation?

• The dish is empty

• There are crystals in the dish

• The liquid turns cloudy

• The liquid changes color

What does it mean if the evaporation dish is empty after evaporating a clear liquid?

• The liquid contained gravel

• The liquid contained powder

• The liquid was just water

• The liquid was a solution

Tags

NGSS.MS-PS1-2