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Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
Leaf Science Gr2
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Leaf Science Gr2

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Transcript

  • 1. Leaf Science! An Adventure & Exploration By Mr. Jarrett K-4 Computer Lab
  • 2. Leaf Science!
    • Leaves, leaves – most are still in the trees! (But not for long…)
    • Leaves give us SHADE in the summer.
    • But that’s not WHY they exist!
  • 3. Leaf Science!
    • Trees and plants need leaves to survive.
    • Trees and plants use leaves to make their own food.
    • When trees don’t need to make food any more, the leaves fall off.
  • 4. Leaf Science!
    • Leaves use water from the roots and carbon dioxide from the air into food for the tree using sunlight and something called chlorophyll .
    • This process is called Photosynthesis .
  • 5. Leaf Science!
    • Leaves are FOOD FACTORIES for trees and plants!
  • 6. Leaf Science!
    • Leaves get their GREEN from something called Chlorophyll .
    • When the Chlorophyll is all used up, the leaf changes color, usually to red, yellow or orange.
  • 7. Leaf Science!
    • Leaves come off the trees in the fall and need to be picked up.
    • Did you ever wonder why trees drop their leaves?
    • It’s because the trees are getting ready for winter – by closing their food factories!
  • 8. Leaf Science!
    • Winter days are short and dry. As the days have less sunlight, plants know to stop making food.
    • The chlorophyll goes away and leaves change into the colors that were in the leaves all along.
  • 9. Leaf Science!
    • Leaves have these main parts:
      • Petiole (stem)
      • Veins
      • Blade
    • Today we’re going to see leaves up CLOSE!
  • 10. Leaf Science!
    • You and your partner will have a turn using the microscope.
    • You will also get a turn using the computer.
    • You will get to explore a leaf and take snapshots.
    • What will YOU find?!?
  • 11. Leaf Science!
    • Do all the leaves look the same?
    • How are the leaves different?
    • Are there any features that all the leaves have in common?
    • How many 'points' do the leaves have?
    • Let’s find out!
    10x 60x 200x
  • 12. Leaf Science! An Adventure & Exploration By Mr. Jarrett K-4 Computer Lab

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