Types of Mixtures 1-2

DO QUICKLY

1. Race car drivers must slow down as they make turns on the track. This is best explained by the law of inertia. Which statement best describes inertia for the car going around a turn?

   A. A body in motion stays in motion at the same speed. A body in motion stays in motion at the same speed.

   B. The speed of the car going into the turn must be conserved. The speed of the car going into the turn must be conserved.

   C. The speed around a turn is proportional to the radius of curvature of the turn. The speed around a turn is proportional to the radius of curvature of the turn.

   D. A body in motion tends to continue in a straight line and requires a force to turn.

​ONLY WRITE THE QUESTION AND CORRECT ANSWER

Types of Mixtures

S8P1 - Obtain, evaluate and communicate information about the structure and properties of matter

a) Develop and use a model to compare and contrast pure substances and mixtures.

Learning Target

I can identify the different types of mixtures.

Success Criteria

I will categorize the types of mixtures
into a graphic organizer in my INB.

Multiple Choice

What is a mixture?

• A single chemical substance

• 
  A combination of two or more pure substances with uniform composition

• A combination of two or more impure substances

• A combination of two or more pure substances with different properties

Multiple Choice

What is an example of a gas-gas solution?

• Salt water

• Air

• Soda

• Italian dressing

Multiple Choice

What is the purpose of mixing other metals with gold?

• To maintain its shape easily

• To make it more rigid

• 
  To increase its value

• To make it softer

Multiple Choice

What is the main reason for using alloys in car manufacturing?

• To achieve greater strength and durability while reducing the weight of the vehicle

• To reduce the strength of the car

• To make the car more expensive

• To increase the weight of the car

Multiple Choice

What is the difference between a homogeneous and a heterogeneous mixture?

• Homogeneous mixtures are also called 'alloys', while heterogeneous mixtures are called 'solutions'

• Homogeneous mixtures are a combination of two or more substances in which the original substances are separated into physically distinct regions, while heterogeneous mixtures have uniform composition

• Homogeneous mixtures have physically distinct regions with different properties, while heterogeneous mixtures have uniform composition

• 
  Homogeneous mixtures have uniform composition and chemical properties throughout, while heterogeneous mixtures have physically distinct regions with different properties

Multiple Choice

What is the purpose of carbon atoms in steel?

• To increase its hardness

• To increase its weight

• To decrease its hardness

• To make it softer

Multiple Choice

What is the main reason for Felix Baumgartner needing a good understanding of chemistry and mixtures?

• To increase the speed of the free-fall

• To survive the jump and maintain a comfortable atmosphere inside his suit

• To become famous in 2012

• To perform the highest free-fall ever

Multiple Choice

What is the term for a combination of two or more substances that have uniform composition and chemical properties throughout?

• Heterogeneous mixture

• 
  Homogeneous mixture

• Alloy

• Solution

• Homogeneous mixture of particles so small that they cannot be seen and never settle out

• Solutions are made of a solute (gets dissolved) and a solvent (does the dissolving)

​

Solutions

​Examples include vinegar, soda (unopened), and Hydrogen Peroxide.

Type of mixture with particles that are larger than those in a solution, but still too light to settle out.

Examples:
Milk (Water & Fat)
Fog (Water & Air)
Cool Whip (Milk Protein, Sugar, Fat & Air)

​
Detecting colloids is sometimes difficult so shining a beam of light at it will make the light scatter - this scattering of light by a colloid is called the Tyndall Effect.

Colloid

Heterogeneous mixture containing a liquid in which visible particles settle.

Examples:
Italian dressing
Muddy pond water
Chocolate milk
Yoo-hoo

HINT - If it needs shaking to mix, then it's a suspension.

​

Suspension

Match

Match the following

• Solution

• Colloid

• Suspension

Vinegar

Yogurt

Paint

• Vinegar

• Yogurt

• Paint

Success Criteria

I will categorize the types of mixtures into a graphic organizer in my INB.