The video tutorial explains physical changes, focusing on mixtures and solutions. It demonstrates making a trail mix to show how mixtures retain their properties and can be separated. The concept of solutions is illustrated with lemonade, highlighting how components are evenly distributed and can be separated by boiling. The video concludes with a summary and encourages further reading.

What remains unchanged in a physical change?

• Both chemical and physical properties

• Chemical properties

• Physical appearance

• None of the above

Which of the following was NOT an ingredient in the trail mix?

• Raisins

• Peanuts

• Butterscotch chips

• Marshmallows

What is retained in a physical change?

• Both appearance and chemical properties

• Chemical properties only

• None of the above

• Appearance only

What is a key characteristic of a mixture?

• It is always liquid

• It cannot be separated

• It changes the properties of the components

• Components retain their original properties

How can a mixture be undone?

• By separating the components

• It cannot be undone

• By boiling

• By freezing

What makes a solution different from a basic mixture?

• It cannot be separated

• Components are mixed evenly

• Components are mixed unevenly

• It changes the chemical properties

What is an example of a solution?

• Lemonade

• Sand and iron filings

• Salad

• Trail mix

Which of the following is a physical change?

• Cooking an egg

• Burning wood

• Rusting of iron

• Mixing lemonade

How can lemonade be separated back into its components?

• By filtering

• By magnetic attraction

• By freezing

• By boiling

What happens to the water when lemonade is boiled?

• It turns into sugar

• It dissolves completely

• It evaporates

• It becomes a solid

Tags

NGSS.MS-PS1-4