Science

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Trees and Forests Unit Test:
Thursday November 3 2016

Study Guide: Click here for study guide.
Trees and Forests Jeopardy: Click here for Trees and Forests Jeopardy

Check out the website below to review all major outcomes, use your science books and your study guide to reference as you study. 

Our science mark for this unit will appear on the report card and will be made up of a variety of formative assessments taken place throughout the unit, our "Parts of a Tree" project, web quests and the unit test. 

Trees & Forests
General Learner Outcome: Describe characteristics of trees and the interaction of trees with other living things in the local environment.

Specific Learner Outcomes:
I can describe the role of trees in nutrient cycles and in the production of oxygen. 

I can describe kinds of plants and animals found living on, under and among trees; and identify how trees affect and are affected by those living things. 

Forest Team Members

Producers

Plants are called producers. This is because they produce their own food!

Consumers:

Animals are called consumers. This is because they cannot make their own food, so they need to consume (eat) plants and/or animals.

Decomposers:

Bacteria and fungi are decomposers. They eat decaying matter - dead plants and animals and in the process they break them down and decompose them.

EXAMPLES
Producersclover, cones, rosehips, raspberry bush, acorn bush, tree (or varieties of trees), grass, flower nectar, etc.
Consumers: rabbit, robin, beaver, owl, hawk, fox, squirrel, hummingbird, deer, coyote, mouse, bear, etc.

Decomposers: earthworm, bacteria, fungus, maggots, etc.

PCD
If we ZOOM in on just the CONSUMERS...
zoom inThere are 3 levels:
3 levels

A Food Chain: 
A food chain shows the flow of energy through a series of organisms.
Each organism is food for the next higher organism.
food chain
Food Web
A more complex version of a food chain
Many food chains connected together 
food web
6B's Food Web: 
food web
The Nutrient Cycle
nutrient cycle
nutrient cycle exp.


Taking a Closer Look at the DECOMPOSERS:
Fungi, Conks & Lichen (please click below for powerpoint)
FungusLichenandConksppt.ppt

Levels of the Forest:
What can we find in each level? 
Click below to see a picture with explanations 
of animals, plants and activity at each of the 4 levels. 
LevelsoftheForest.pdf



Specific Learner Outcome: 
I can identify general characteristics that distinguish trees from other plants, and characteristics that distinguish deciduous from coniferous trees. 

WHAT IS A TREE
A tree is defined according to the following criteria:

  • It must be perennial
  • It must have a self supporting trunk
  • The trunk must be made of woody material
  • A tree usually grows to a height of 5 to 7 metres
  • NOTE: a young tree that has not yet reached adult height is called a sapling.

  • DIFFERENCE BETWEEN TREES AND OTHER PLANTS
  • All other plants differ from trees in at least one of these ways.
  • No plant with a soft, juicy stem is  a tree.
  • Most plants are much shorter than trees.
  • Shrubs, like trees, have woody stems; but most shrubs have more than one stem, none of the stems grow so thick as to be called a trunk.
  • Some jungle vines grow several hundred metres long and have a woody stem. However, the stems of vines cannot support themselves.

DECIDUOUS TREES VS.
CONIFEROUS TREES 
coniferous and deciduous
comparison chart

Specific Learner Outcome: 
I can describe and classify different types of leaves. Leaf ID

Leaf Identification Power Point.pptx

To identify leaves we use a DICHOTOMOUS KEY. 
"Dichotomous" means "divided into two parts." Therefore, a dichotomous key will always give you two choices in each step and following all the steps will lead you to the name of the tree you're identifying.

This is a great site for identifying leaves using a dichotomous key (choices are located on the righthand side of the screen under "Identify Here"). 
Leaf Identification Dichotomous Key


Specific Outcome: 
I can describe the role of trees in nutrient cycles and in the production of oxygen. Photosynthesis- Photo-WHAT!? 
It's easier than it sounds...trust us! 

Photosynthesis is a process in which green plants use energy from the sun to transform water, carbon dioxide, and minerals into oxygen. It is one example of how people and plants are dependent on each other. 

Photosynthesis happens when water is absorbed by the roots of green plants and is carried to the leaves by the xylem, and carbon dioxide is obtained from air that enters the leaves through the stomata and diffuses to the cells containing chlorophyll

Photosynthesis provides us with most of the oxygen we need in order to breathe. We, in turn, exhale the carbon dioxide needed by plants. Plants are also crucial to human life because we rely on them as a source of food for ourselves and for the animals that we eat.
photo

CHECK OUT THESE RESOURCES BELOW: 


Photosynthesis Song

Video: How do plants make their own food? 
Photosynthesis Video

What does this have to do with OXYGEN?
Photosynthesis & Leaf Colour Change Notes .docx



Specific Learner Outcome Interpret the growth pattern of a young tree, distinguishing this year’s growth from that of the previous year and from the year before that. Students meeting this expectation should recognize differences in colouration and texture of new growth and old growth, and locate scars that separate old and new growth. The following link is a great resource! Tree Cookies Web Quest Here is a helpful video Studying Tree Cookies
Specific Learner Outcome: 
Identify human uses of forests, and compare and historical patterns of use.
Take a look at our Google Slides! 
Modern and Historical Uses of Trees and Forests