Types of Mixtures 1-2
Presentation
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Science
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8th Grade
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Practice Problem
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Medium
+7
Standards-aligned
Christiane Henderson
Used 10+ times
FREE Resource
9 Slides • 9 Questions
1
DO QUICKLY
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
2
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.
3
Learning Target
I can identify the different types of mixtures.
4
Success Criteria
I will categorize the types of mixtures
into a graphic organizer in my INB.
5
6
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
7
Multiple Choice
What is an example of a gas-gas solution?
Salt water
Air
Soda
Italian dressing
8
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
9
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
10
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
11
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
12
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
13
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
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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.
15
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
16
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
17
Match
Match the following
Solution
Colloid
Suspension
Vinegar
Yogurt
Paint
Vinegar
Yogurt
Paint
18
Success Criteria
I will categorize the types of mixtures into a graphic organizer in my INB.
DO QUICKLY
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
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