1. Science- Plants
Part 1: Leaves

2. Basic parts of a plant
Leaves absorbs sunlight to make food for the plant (glucose)
Roots holds the plant in place, absorbs minerals & water
Flowers attract pollinators to help with pollination
The stem holds up the leaves and helps transport things from one part of the plant to another

3. Intro to leaves There are different sizes and shapes of leaves
A blade of grass, a pine needle and a cactus thorn are all kinds of leaves
There are 2 MAJOR types of leaves

4. Intro to leaves Petiole Blade SIMPLE type of leaves
1 blade: flat and broad part to capture sunlight
1 petiole: Supports the blade and turns it to the sun
Examples: Grass and on most trees
Petiole
Blade

5. Intro to leaves COMPOUND type of leaves 1 petiole with many LEAFLETS
Examples: Ferns, evergreens

6. Main jobs of leaves Leaves let plants make FOOD
There is something that happens in leaves called PHOTOSYNTHESIS
Leaves take energy from the sun, carbon dioxide from the air and water from the soil
The leaves make OXYGEN and GLUCOSE

7. Main jobs of leaves - PHOTOSYNTHESIS

8. Main jobs of leaves - PHOTOSYNTHESIS

9. Leaves on the outside Broad shape helps to collect sunlight easily
Green color = chlorophyll traps sunlight
Broad shape helps to collect sunlight easily
Veins and stem helps carry water
Waxy and slippery surface waterproofs the top

10. Leaves on the inside Leaves have tiny holes inside on the bottom
These holes are called STOMATA
Stomata help carbon dioxide go into the leaf and help oxygen come out of the leaf

11. Leaves on the inside Stomata can open and close
They open and close when cells around them fill up or empty (water)
Full- opens
Empty- closes
These cells are called GUARD CELLS

12. BILL! BILL! BILL! BILL! BILL!