Science 3 plant parts-root and stems

Post on 22-Jan-2018

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transcript

The different parts of the plants do different jobs.

Plants and trees have roots, they hold the plants in the soil.

Roots take water from the soil;

Water travels up the stem to the leaves;

Roots keep trees standing in the wind

There are different types of root:

This is a storage root:

Stems:

The stem grows up from the ground.

The stem carries water from the root to the leaves and flowers:

In the stem there are xylem and phloem:

The rings in a tree trunk show how many years it grow for:

Check your progress:

• How does water travel through the plant?

• What types of root do you know?

• What are the roots for?

• What are the stems for?

• What are the names of the hollow tubes in the stem?

• What is a trunk?

• How can we guess the age of the tree?