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Teacher Click Through - VST - Water's Journey Through Plants
Virtual Science Teac
Created on November 24, 2024
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Transcript
Teacher Click-Through Version The signature feature has been disabled. Use the arrows on the side of the screen to quickly move through the module.
Begin
An Interactive Exploration
Water's Journey Through Plants
Teacher Click-Through Version
Plants need water to make their food, grow, stay strong and upright, and stay cool.
Continue
How does water travel into and through a plant?
Teacher Click-Through Version
Let's explore how plants get the water they need to live and grow.
Select the cloud to make it rain.
Teacher Click-Through Version
Now that it has rained, the soil is well-watered.
Select the part of the plant that absorbs water from the environment.
Teacher Click-Through Version
Most plant roots have root hairs that help soak up water by increasing the surface area of the roots.
Root Hair
Select one of the root hairs in the diagram above.
That's right! The plant's roots reach downward and absorb water and nutrients from the soil.
Teacher Click-Through Version
Select the plant roots to see a larger view.
Teacher Click-Through Version
Xylem
Select the root's xylem in the diagram above.
The xylem in roots are tube-like structures that pull up water and nutrients from the soil to the stem and leaves of the plant.
Teacher Click-Through Version
Select one of the stem's xylem in the diagram.
Xylem
After water moves through the roots, it flows up through the xylem in the stem to reach the leaves, flowers, and fruit of the plant.
Teacher Click-Through Version
Xylem
Teacher Click-Through Version
As water travels to all parts of the plant, it helps keep the plant firm and upright. Without enough water, the plant wilts, causing its leaves and stems to become limp and droop.
Select the watering can to give this plant some water.
Teacher Click-Through Version
Select the plant that is now taller and stronger because it has plenty of water.
Teacher Click-Through Version
In addition to keeping the plant strong and upright, water is used for various processes throughout the plant, including photosynthesis, where it helps the plant produce its own food.
Select any of the plant's leaves, where photosynthesis most commonly occurs.
Teacher Click-Through Version
After water travels through the roots, stem, and all parts of the plant for processes like photosynthesis and keeping the plant strong, any extra water exits through the leaves in a process called transpiration, which helps cool the plant.
Select a part of the plant where transpiration occurs most.
Teacher Click-Through Version
In the graphic above, select the stoma, the structure where water exits the plant.
Note: The stomata also release oxygen and absorb carbon dioxide.
Yes! Transpiration mainly happens on the underside of leaves, where water vapor exits through tiny openings called stomata (singular: stoma).
Teacher Click-Through Version
Leaf under a microscope