Chemistry! Hooray!

Chemistry! Hooray!

Tuesday 19 November 2013

Practice Quiz for Succession


http://www.sciencesource.ca/quizzes/quiz_03_1smLBv.htm

Succession Quiz Study Guide

Key Terms

 climax community
 pioneer species
 primary succession
 secondary succession
 succession
 sustainability
 recovery
    
1. Differences between primary and secondary succession and the process of succession


My Ecological Footprint Assignment Outline


My Ecological Footprint

Your personal ecological footprint is how much land and resources it takes to maintain your lifestyle. For example; how much area of the planet you need to produce the resources you consume and to contain the waste you throw out. The less land and resources you use, the better it is for ecosystems.

In this activity, you will use an online ecological footprint calculator to determine how much land and resources you are using to maintain your personal lifestyle. The goal of this activity is to find ways to act more sustainably to help reduce your ecological footprint. In other words; how can you change your actions to help make ecosystems healthier?

Begin by reading about ecological footprints by following the link below:


The Task

PART A

1. Follow the link below to complete your ecological footprint


2. Select “Calgary” from the virtual map; unfortunately “Toronto” cannot be selected

3. Select “Kids Version”

4. Select “Detailed Version”

5. Build your “avatar” to represent you during the game

6. Answer the questions in the quiz as accurately as possible

7. Read through your results and print a copy to submit with this assignment.

PART B

Write a ONE PAGE response based on the results of your ecological footprint calculation. Your response should answer the following question:

What actions can you take to help reduce your ecological footprint and live in a more sustainable way?

Begin your research by reviewing sections 3.2 and 3.3 (pages 68-81) in your Science textbook.

The following links may also help guide your response. Do not follow the “Take Action” link on the results page of the ecological footprint; the link no longer works.



Please review the success criteria below to help you write your response.


Response Success Criteria

Criteria
Details
Organization and communication
  • No more and no less than one page in length
  • Written in 12 point font ONLY
  • Written in an easy to read font
  • Text is not bolded or italicized
  • Written in proper paragraph form
  • Several paragraphs are written
  • There is no extra space between paragraphs
  • There is a title and your name at the top of the page
Content
  • A minimum of five different strategies to reduce an ecological footprint are included
  • Student has clearly researched the strategies
  •  The information is detailed and informative
  • Each strategy is clearly explained how it will reduce an ecological footprint
  • A copy of the printed results of the ecological footprint online activity is included
Thinking
  • The strategies outlined in the response demonstrate a strong understanding of how to act more sustainably 
Application
  • The results of the student’s ecological footprint have been used to guide the response
  • Researched strategies have been described in the response



This assignment is due on Tuesday November 26, 2013

Wednesday 13 November 2013

Succession Quiz Dates


Class 7D will have their Ecological Succession Quiz on Wednesday November 20th.

7A, 7B, 7C, and 7E will have their Ecological Succession Quiz on Thursday November 21st.

Friday 1 November 2013

Grade 7 Chapter 2 Test Date Reminder


Classes 7A, 7B, 7C, and 7D will have their test on Friday November 8th.
Class 7E will have their test on Thursday November 7th.

Grade 7 Chapter 2 Study Guide


Key Terms

   bioinvasion
   cycle
   cycling of matter
   energy pyramid
   food web
   introduced species
   invasive species
   limiting factors
   native species
   primary consumers
   secondary consumers
   sustainability
   tertiary consumers
   wetlands

Review notes from section 2.1, 2.2 and 2.3 (can be found on blog)
Review crossword puzzles and worksheets for Chapter 2 in package

Review the following concepts:

  1. How matter cycles through an ecosystem and list abiotic elements that go through this cycle
  2. How much energy is passed along a food chain and why
  3. herbivores, carnivores, omnivores, scavengers, detritivores, decomposers, and all other roles in the ecosystem
  4. What is sustainability? How can we act in a sustainable way?
  5. How ecosystems change naturally over time
  6. How animals compete for resources
  7. Bioinvasion, introduced species and their effects on ecosystems (examples of these)
  8. How do limiting factors balance ecosystems?

Links for Review


Please browse these links for review:

The Carbon Cycle Game
http://www.windows2universe.org/earth/climate/carbon_cycle.html

Invasive Species (Bioinvasion)
http://www.hww.ca/en/issues-and-topics/invasive-alien-species-in.html

Limiting Factors
http://www.nhptv.org/natureworks/nwep12a.htm

You may also search through the links on ScienceSource
http://www.sciencesource.ca/pgs/index.php

In order to login, you must select "Login" and enter:

Username: ClassFollower
Password: Follower 

These are case sensitive.

Select "Sciencesource7 - Unit A"

From there you can scroll down to chapter 2 and investigate the links.

You will also find the link to the chapter 2 text right after you see the title for "Chapter 2" as you scroll down.

16:9 Asian Carp Video


Here is the video we viewed in class


Limiting Factors Notes

2.3 Interactions and Changes in Ecosystems

·        Limiting factors control or limit the number and health of biotic elements in ecosystems

·        Examples of limiting factors are the amount of food, water, energy, oxygen, and suitable habitat available to organisms

·        Other limiting factors can include; predators, hunting,  or natural or human made disasters

·        Availability of limiting factors can change in ecosystems; e.g., when higher rainfall increases the number of producers and then the consumers have more food

·        Sometimes changes can negatively impact availability of limiting factors; e.g., a forest fire or bioinvasion

·        Bioinvasion is when a foreign species is introduced into native ecosystems

·        A native species occurs naturally in a given area e.g., trout in Lake Ontario

·        An introduced species is one that is brought to an environment where it did not live before e.g., zebra mussels in Lake Ontario

·        Introduced species with no natural predators can quickly multiply and take over habitat and deplete the food source of native species

·         Zebra mussels and Asian carp are known as invasive species

·        Competition – all living things in a community compete for resources like food, water, and habitat; however, the supply of these resources are limited

·        Living things are always struggling to meet their basic needs at the expense of other living things