Friday, April 3, 2020

04.03.2020 - Science Notes and Assignment for Friday -

04.03.2020 - Friday - Science Notes (left side)
(Remember to - as always - define CAPITALIZED terms.)
  1. Current Events:  CNN 10 - 
    1. One note on what is NOT down about this corona virus.
    2. One note on the Arabian Desert. (This is a perfect tie in when we study the rain forest! There’s an interesting connection between the rain forest and the desert.)
II.  Seed plants and flowers:  Chances are that today’ll you’ll enjoy several items of food brought to you by SEED PLANTS.
A.  There are more than 300,000 plant SPECIES!
B.  All plants are made of EUKARYOTIC cells.
C.  The building you are in, right now, is likely being held up by plants! Well, kind of. Think about wood. Wood is made from trees and it has its characteristic hardness from CELLULOSE … the cell walls left over after the plant cells are no longer living.

III.  We’ve spent some time talking about that incredible CHEMICAL REACTION, PHOTOSYNTHESIS - the chemical reaction that takes water and carbon dioxide and makes sugar while releasing oxygen in a form animals can breath. The PHOTOSYNTHESIS takes place in an ORGANELLE called CHLOROPLASTS.  

IV.  Most plants SPROUT from a SEED. 
A.  A SEED (the subject of our next observation / drawing) is, basically, and undeveloped plant in a hard shell that protects it from drying out and , often, provides food for the SEEDLING.  
B. SEED PLANTS are responsible for the FRUIT and vegetables that you’re eating today.

V.  Remember the video and notes on celery stalks? All seen plants are VASCULAR, they have specialized structures to carry food and water.

VI.  ROOTS absorb the water and nutrients and bring it to the STEM.  
A.  XYLEM: Carries water, sap, and minerals through a plant.
B.. PHLOEM:  Carries food (sugar, AMINO ACIDS ,and nutrients.

V. Plants are characterized by how they reproduce.
A.  ANGIOSPERMS:  The seeds are located inside a FLOWER  
1.  Product fruit after the seeds are POLLINATED.
2.  Most plants in land are angiosperms. There are two classes of angiosperms.
i.) MONOCOTS (One seed leaf.)
II.) DICOTS (Two seed leaves.)
1.  Produce no fruit.
2.  Usually have CONES to reproduce. (Remember our walk around campus when we observed conifers and saw the pollen collecting on surfaces?)

V.  Assignment for the right side of today’s notes. Define the CAPITALIZED terms and write their definitions - along with a quick sketch (if possible.)

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