Exploring Mixtures and Solutions for 4th Graders

What is a mixture?

• A single pure substance

• A solution where one substance dissolves into another

• A combination of two or more substances

• A type of chemical reaction

Which of the following is a pure substance?

• Air

• Salt water

• Blood

• Diamond

What makes a mixture different from a compound?

• Compounds are always liquid

• Mixtures have chemical bonds between components

• Mixtures can be physically separated

• Mixtures cannot be separated

What distinguishes a heterogeneous mixture?

• It looks the same throughout

• It cannot be separated into its components

• It has a uniform appearance

• Its components can be visually distinguished

Which of the following is an example of a homogeneous mixture?

• Chocolate chip cookie dough

• Cake batter

• Salt and pepper

• Trail mix

Which example is a heterogeneous mixture?

• Salad

• Vinegar

• Air

• Sugar in water

What is a solution?

• A homogeneous mixture where one substance dissolves into another

• A mixture that cannot be separated

• A pure substance made of two elements

• A heterogeneous mixture with a uniform appearance

What happens when sugar dissolves in water?

• It becomes a heterogeneous mixture

• Sugar and water form a solution

• Water becomes a pure substance

• Sugar loses its chemical properties

Tags

NGSS.MS-PS1-2

Is blood considered a homogeneous mixture or a solution?

• Heterogeneous mixture

• None of the above

• Solution

• Homogeneous mixture

What type of mixture is chocolate chip cookie dough?

• Solution

• Pure substance

• Heterogeneous mixture

• Homogeneous mixture