Requirements for Grade 8 Transformation Task (Math)

Your flip book must contain a minimum of:

1. Two translations; be sure to include the translation vectors
2. Two reflections; one of which must be reflected in a line that passes through (0,0) and (1,1)
3. Two rotations; one of which is about the origin (0,0)
4. Two dilatations; one getting larger and one getting smaller
5. Three coordinates that are recorded each time a transformation is applied

You will also be assessed on the complexity of the shape you have chosen to transform.

This project is due on Tuesday April 1st

Chapter 8 Practice Quizzes

Chapter 8.1 Quiz

http://www.sciencesource.ca/quizzes/quiz_08_1XJ85P.htm

Chapter 8.2 Quiz

http://www.sciencesource.ca/quizzes/quiz_08_2jTk44.htm

Chapter 8.3 Quiz

http://www.sciencesource.ca/quizzes/quiz_08_3pvz04.htm

Letter Writing Assignment - Due Tuesday April 1st

Effects of Pure Substances on the Environment Task

You are a concerned citizen writing to a politician about an issue relating to pure substances and their effect on the environment. Your goal is to convince this politician to vote in favour of your opinion in the legislature.

For this task you are to select one of the following two issues:

1. Nuclear power generation
2. Use of pesticides on crops

You are to support one side of the issue you have chosen.

For example, if you choose to write about nuclear power generation, you could write a letter in support of nuclear power generation or against nuclear power generation.

Steps to follow:

1. Choose an issue and whether you are going to write a letter in support of or against the issue.
2. DO RESEARCH! If your letter is going to be convincing, you should have factual evidence to support your argument.
3. Review the formal letter template included on the reverse of this page. You will need to find the name and address of an actual politician to write to.
4. Write a draft of your letter and ask someone to edit the letter for you.
5. Type up your letter on a computer and review the success criteria to be sure you have met all the requirements for this task.

Success Criteria

CONTENT

• The first paragraph of the letter clearly takes a position for or against the issue
• The second paragraph strongly supports the position of the writer
• The third paragraph asks the politician to take a specific action
• There are 3 reasons for or against the issue included in the letter; each reason is supported by strong and relevant evidence
• The evidence in the letter is clearly researched

ORGANIZATION

• The letter is approximately one page in length, typed in 11 or 12 point font

• At least 3 paragraphs A formal closing Student follows template on the reverse

  The letter includes:
• The student’s mailing address
• The date
• The name and address of an actual politician
• A formal greeting
• A list of sources is included with the letter

Formal Letter Template

http://web2.uvcs.uvic.ca/elc/sample/beginner/wt/wt_25.htm

Nuclear Energy Video and Worksheet Answers

Follow the link below to access the video we watched in class. http://www.livestream.com/newchannel/popoutplayer?channel=billnye&clip=pla_747209572572831573

The answers to the worksheet questions are below:

The Eyes of Nye

Nuclear Energy

  1.      What are the three main sections of a nuclear power plant?

Reactor, Generator, Cooling Towers

  2.      What starts the nuclear chain reaction?

Uranium is bombarded by neutrons

   

  3.      What does fission mean?

To split apart an atom

  4.      What two products are formed from the fission of uranium?

Energy as Heat

Shoots out another neutron

   
  5.  How much nuclear waste is produced in 60 years of a power plant operating?

Enough waste to fit into a convenience store

   6.      How much waste would a coal plant produce?

Ten million times more waste

   7.      Where are most of the nuclear waste and spent fuel rods currently?

In reactor pools at the nuclear plant

   8.      What is the estimate for how long it takes nuclear waste to completely decay?

10 000 years

   9.      What materials are used to shield or block nuclear radiation?

Stainless steel, concrete

   10. Why is Yucca Mountain such an attractive location for nuclear waste storage?

a.         Dry site

b.         Remote

c.          Stable rock formation

   11. What is the half-life of Plutonium, part of nuclear waste?

24 000 years

   12. Why was the 10,000 year standard ruled invalid?

Plutonium would still be very dangerous at 10 000 years.

   13. Give two positive and negative arguments involving the usage of nuclear energy.

No deaths in accidents in 50 years

20% of US energy production

Can be used by terrorists

Disposal is expensive

   14. How much total nuclear waste exists worldwide?

300 000 tons

   15. What are two other ideas for dealing with nuclear waste?

Burying under oceans or under remote islands,

drop into Earth’s crust, bury in polar ice caps

   16. Why can’t the nuclear waste be shot into space?

      An accident would cause a nuclear disaster

   17. Describe transmutation.

      A method of changing a dangerous radioactive substance into a less dangerous one that will decay in a few hundred years

Chapter 8 Test Date and Another Link

The Chapter 8 Test will be on Thursday March 27th for classes: 7B, 7C, 7D, and 7E.
Class 7A will have their test on Wednesday March 26th.

There will be a question relating to separating mixtures. Check out the link below for some good information.

http://www.bbc.co.uk/bitesize/ks3/science/chemical_material_behaviour/compounds_mixtures/revision/9/

Chapter 8 Links for Review

Here are some review activities and crosswords to help you study. Your test will be the second week back.

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

Chapter 8 Study Guide

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