Wood Composition

Front

Types of trees: Coniferous

Back

Coniferous trees are softwood, have needles that last 3-4 years and fall off. Examples include Pine, Spruce, Cedar, and Fir.

Front

Types of trees: Deciduous

Back

Deciduous trees are hardwood, have leaves that they lose every fall. Examples include Oak, Maple, Birch, Cherry, and Walnut.

Front

Tree rings

Back

indicate the age of a tree and the conditions it has experienced. Each ring includes spring and summer growth and typically represents one year of growth.

Front

How do seasonal changes affecting plant growth?

Back

Plants grow in spring due to increased rainfall, melting snow providing water, and warmer temperatures.

Front

What category of tree has needles?

Back

Tree branch with green needles is a part of a coniferous tree.

Front

Pine tree

Back

This is an image of a pine tree, known for its evergreen needles and conical shape.

Front

Spring Growth characteristics

Back

Grows quickly, large cells, cells spread out, light in color, softer

Front

Summer Growth characteristics

Back

Grows slowly, small cells, cells are compact, dark in color, harder

Front

Reason for tree rings

Back

Trees have rings because of differences in spring and summer growth

Front

Tree rings showing growth patterns

Back

Reasons why a tree will grow to one side only: 1. Wind 2. Sunlight blocked on one side 3. Growing on a cliff 4. Power line Company (OPPD)