Chemistry! Hooray!
Wednesday 15 April 2015
Dates for Chapter 8 Test
Classes 7A, 7B, 7C, and 7E will have their test on Wednesday April 29th.
Class 7D will have their test on Thursday April 30th.
Separating Mixture Information to Study for the Test
We have examined a variety of different methods for separating mechanical mixtures and solutions.
For the upcoming test, you are expected to understand each method and which PROPERTIES of the individual substances in a mixture make it possible to separate them.
For example, a filter works to separate gravel from water because the particle size of gravel is to large to pass through the filter while the water passes through easily.
Review each of the methods listed below. Some methods are not listed in your textbook, however, these can be found in your package.
Separating Solutions
1. Chromatography
2. Distillation
3. Evaporation
Separating Mechanical Mixtures
1. Filtration
2. Magnetism
3. Sifting
4. Sorting
5. Settling
6. Flotation
7. Separating Funnel
If you would like to read further about any of these methods, please review the links below:
http://www.eschooltoday.com/science/elements-mixtures-compounds/separation-of-mixtures.html
https://quizlet.com/6780731/8-ways-to-separate-mixtures-flash-cards/
Monday 13 April 2015
Filtration Task Brainstorming
At this point, some classes are brainstorming filter designs. Please follow these steps when brainstorming:
1. Read about water filter design by exploring the links provided below
2. Consider what would be a good design for a water filter?
3. Using the brainstorming worksheet provided in class, draw a filter you believe would work well to separate a mechanical mixture
4. Remember to add detailed notes to your diagram that explains the rationale behind the materials and design you used
5. You will also need to include estimated measurements for your design; remember that the filter must fit inside a 30 cubic centimeter box
Links to explore:
http://www.ourtravellifestyle.com/tips-and-planning/travel-tips/science-fun-experiments-travel-kids/
Friday 10 April 2015
Date for Chapter 8 Science Test
The Chapter 8 Science Test will be scheduled during the last week of April.
Thursday 9 April 2015
Study Guide for Chapter 8 Test
Study the terms and concepts below to help prepare you for the test. Don't forget that separating mixtures will also be on this test.
Chapter 8 Key Terms
□ alloy
□ concentrated solution
□ concentration
□ dilute
□ distillation
□ evaporation
□ filtration
□ insoluble
□ magnetic
□ paper chromatography
□ saturated solution
□ saturation point
□ sifting
□ solubility
□ solute
□ solvent
□ sorting
□ supersaturated
□ unsaturated
Review the key concepts and chapter summary below
Key Concepts
|
Chapter Summary
|
• Solutions consist of solutes and solvents.
• Solutions can be dilute or concentrated, and saturated, unsaturated, or supersaturated.
• The concentration of a solution is the amount of solute dissolved in a specific amount of solvent.
|
• The concentration of a solution can be described in qualitative and quantitative terms. (8.1)
• Solutes and solvents can be identified in various kinds of solutions. (8.1)
• Solubility is affected by temperature, type of solute or solvent, particle size, and stirring. (8.2)
• Solutions and mechanical mixtures are separated in different ways. (8.3)
• Water is sometimes known as the universal solvent. (8.1)
• Gases dissolve more in colder water than in warmer water
• Water is sometimes known as the universal solvent. (8.1)
• Review how to calculate the concentration of a solution
|
Grade 7 Links to Review for Chapter 8 Test
Here are some review activities and crosswords to help you study.
Section 8.1 Quiz
https://sciencesource.pearsoncanada.ca/quizzes/quiz_08_1XJ85P.htm
Section 8.2 Quiz
https://sciencesource.pearsoncanada.ca/quizzes/quiz_08_2jTk44.htm
Section 8.3 Quiz
https://sciencesource.pearsoncanada.ca/quizzes/quiz_08_3pvz04.htm
Chapter 8.1 Crossword
http://www.sciencesource.ca/puzzles/puzzle_08_1/
Chapter 8.2 Crossword
http://www.sciencesource.ca/puzzles/puzzle_08_2/
Chapter 8.3 Crossword
http://www.sciencesource.ca/puzzles/puzzle_08_3/
Chapter 8 Matching Quiz
http://www.sciencesource.ca/resources/gr7_matchquiz_ch08/
Chapter 8 Labeling Quiz
http://www.sciencesource.ca/resources/gr7_labelquiz_ch08/
Separating Mixtures Labeling
http://www.sciencesource.ca/resources/05_sep.swf
A good explanation of chromatography (be sure to click "show labels")
http://www.sciencesource.ca/resources/gr7_label_page228.swf
A good explanation of dissolving
http://www.sciencesource.ca/resources/gr7_label_page221.swf
Separating Mixtures
http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/compounds_mixtures/revision/9/
Grade 8 Outsiders Test
The Outsiders test for chapters 1-6 will be on Monday April 13th.
- It will be an open book test
- You will need to be familiar with plot events and characters in the novel
- You will be required to identify the speaker of a quote and it's meaning
- There will be a choice of 2 different questions to answer in a response format
- You will need to familiar with the vocabulary words identified in class; they are:
- aloof
- elite
- boozed-up
- gallantly
- scowled
- savvy
- roguishly
- weed
- tuff
- dumbfounded
- sly
- cooler
- rumble
- buckskin
- hood
- half-crocked
- fiery
- bootlegging
- rodeo
- towheaded
- bleak
- ornery
- madras
- cunning
- ruefully
- drawled
- imploringly
- heater
- bawled
- gorged
- barrel race
- rank
- fuzz
- briskly
- resignedly
- reeling
- fiend
- souped-up
- woofin'
- beer-blast
- incredulous
- doggedly
- soused
- sullenly
Remember that there may be different meanings to these worlds. You are responsible for understanding their meanings in the context of The Outsiders.
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