Trees

key notes:

1. What Is a Tree?

• Definition: A tree is a tall plant with a trunk that supports branches and leaves.
• Parts of a Tree: Trees have roots, a trunk, branches, and leaves or needles.

2. Parts of a Tree

Roots:

• Anchor the tree in the ground and absorb water and nutrients.

Trunk:

• Supports the tree and transports water and nutrients from the roots to the leaves.

Branches:

• Extend from the trunk and hold the leaves.

Leaves:

• Capture sunlight to make food for the tree through a process called photosynthesis.

3. Types of Trees

Deciduous Trees:

• Lose their leaves in the fall (e.g., maple, oak).

Evergreen Trees:

• Keep their leaves year-round (e.g., pine, fir).

4. Importance of Trees

Provide Oxygen:

• Trees produce oxygen that we breathe.

Home for Animals:

• Many animals live in trees or use them for shelter.

Shade and Cooling:

• Trees provide shade and help cool the air.

Reduce Pollution:

• Trees help clean the air by absorbing pollutants.

5. How Trees Grow

• From Seeds: Trees start from seeds, which grow into seedlings and then mature into full-sized trees.
• Growth Rings: The trunk of a tree has rings that show how old the tree is. Each ring represents one year of growth.

6. Fun Facts About Trees

• Oldest Trees: Some trees can live for thousands of years.
• Tallest Trees: The tallest trees in the world are redwoods, which can grow over 300 feet tall.

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