Mixtures and Solutions

Multiple Choice

A combination of 2 or more substances that cannot be easily separated is called- 

• a mixture
• a solution 
• a solute 
• a solvent 

Multiple Choice

What is a mixture?

• A substance made of two or more elements chemically combined.

• A combination of two or more substances that are not chemically combined.

• A single element in its pure form.

• A compound formed by chemical reactions.

Multiple Choice

Which of the following best describes a mixture?

• A combination of substances that do not form a new substance and are easy to separate.

• A substance that cannot be separated into other substances.

• A combination where substances react to form a new substance.

• A liquid that always looks the same throughout.

Drag and Drop

This is an example of a

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Mixture

Solution

Drag and Drop

Classify as a mixture or ​ solution.



Chili powder and iron filings. ​

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Solution

Mixture

Drag and Drop

Which is an example of a solution?​

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orange juice

salt water

koolaid powder

chex mix

fruit salad

Multiple Choice

A mixture of one substance dissolved evenly in another

• Substance
• Mixture
• Sieve
• Solution

Multiple Choice

How is a solution different from a mixture?

• In a solution, substances are evenly spread and dissolved, while in a mixture, substances are not evenly distributed and can be separated.

• A solution is always a liquid, but a mixture is always a solid.

• Mixtures cannot be separated, but solutions can.

• Solutions are always visible, but mixtures are not.

Multiple Choice

Classify the following as solutions or not solutions: salt water, mouthwash, oil and vinegar, chicken noodle soup.

• Salt water and mouthwash are solutions; oil and vinegar and chicken noodle soup are not solutions.

• Salt water and oil and vinegar are solutions; mouthwash and chicken noodle soup are not solutions.

• All are solutions.

• None are solutions.

Multiple Choice

What happens to the original substances when they are combined to form mixtures or solutions?

• They remain present even if you cannot see them.

• They disappear completely.

• They change into a new substance.

• They become gases.

Multiple Choice

What does it mean when we say mass is conserved during the mixing of materials?

• The mass increases after mixing.

• The mass decreases after mixing.

• The mass stays the same before and after mixing.

• The mass disappears after mixing.

Open Ended

Summarize what you learned about mixtures and solutions today. What questions do you still have?

Open Ended

How are solutions different from mixtures?

Multiple Choice

What is the difference between mixtures and solutions?

• In a mixture, one substance has dissolved.

• A mixture has two substances. A solutions has 3.

• A solution is a mixture in which there is a solvent and a solute.

• A mixture is where all the physical properties have changed.

Multiple Choice

Which one of the following would you use to separate sand from iron filings?

• a bar magnet
• filter paper
• chromatography paper
• alum

Multiple Choice

Lemonade is a special mixture called a 

• substance
• solution
• plasma
• ingredient

Multiple Choice

How would you separate the ingredients of mixture Z?

• Water
• A magnet
• A sieve
• My hands

Multiple Choice

How can you separate sand and water?

• Evaporation

• Using your fingers

• Using tweezers

• A paper filter

Multiple Choice

Is iced tea a mixture or solution?

• solution

• mixture

Multiple Choice

Is the pasta salad a mixture or a solution?

• solution

• mixture