Solutions - Separating Solutions

A student stirs lemon juice and sugar into a glass of water. Why is this drink considered a solution?

• The lemon juice and sugar change the taste of the water

• The water changes color

• The lemon juice and sugar dissolve in the water

• The student stirs the mixture

A student combines salt crystals and water. What happens to the salt when added to water?

• The combined physically to form a special mixture

• The salt and water evaporated

• The salt and water separated, forming layers

• The salt melted the water

Tags

NGSS.MS-PS1-2

A beaker contains a mixture of salt, sand, gravel, and iron filings. Which substance is soluble in water?

• sand

• iron filings

• salt

• gravel

The part of the mixture in which other substance are dissolved is called -

• solute

• solvent

• variable

• mixture

During an investigation, several students make statements about solutions. Which statement is NOT true?

• When sugar dissolves in water, the sugar is evenly distributed throughout the solution

• Solutions can be classified as mixtures

• Heating the water first causes salt to dissolve faster

• When salt is dissolved in water, parts of the solution taste saltier than others.

Students are classifying substances. Which of the following substances is a solution?

• Sand and water

• Sugar and water

• Spaghetti and meatballs

• Soil and water

A student makes a table to compare substances that are soluble in water with substances that are insoluble in water. How many substances listed can be classified as soluble or insoluble?

• 1 soluble, 2 insoluble

• 2 soluble, 1 insoluble

• 3 soluble, 0 insoluble

• 0 soluble, 3 insoluble

Tags

NGSS.MS-PS1-2

The substance being dissolved in a solution is called the -

• solute

• solvent

• variable

• not here

Which tool is necessary when using evaporation to separate a solution?

• 
• 
• 
• 

What characteristic of Dr. Pepper makes it a solution?

• It contains more than one ingredient

• It was developed using a recipe

• it contains dissolved fruit syrups and carbonated gas

• It can be separated using a filter