Transcript The Life Cycle of a Plant

The Life Cycle of a Plant
Your instructions
• Make a heading in your notebook for The Life Cycle of a Plant.
• Read each slide together.
• For each slide, write down
• The numbered heading (like 1. Germination)
• Copy the information down for that part of the life cycle.
• When you are finished, close this presentation and view
the two websites on the class webpage.
1. Germination
• The seed coat is softened by water.
• The seed splits open.
• The new plant inside (the embryo) begins to grow up.
• The root begins to grow down into the soil.
2. Sprout or Seedling
• A small shoot pushes up through the soil, beginning the plant’s
growth.
• The stem and “seed leaves” turn green as CHLOROPHYLL (a green
chemical) begins to form. Chlorophyll is one the things needed for a
plant to make its own food.
3. Plant Growth
• The stem grows thicker and stronger.
• The plant becomes green with CHLOROPHYLL inside it.
• It develops LEAVES, which are “food factories”. They make food for
the plant by the process of PHOTOSYNTHESIS.
• The plant grows taller.
4. Flower buds
• Flower buds begin to form at the tips of some stems.
• They are important beginnings of new flowers, from which new seeds
will form.
5. Flowers
• A flower opens its colorful petals up, with important parts in the
center to help to create a new seed.
6. Pollination
• An insect, bird or the wind has to help transfer pollen grains from the
plant of one flower to a flower on a different plant.
• The flower is then fertilized and a new seed begins to grow inside the
flower.
7. Fruit or seed pod formation
• A fruit or seed pod grows around the seed to protect the seed.
• The flower dies and the fruit or seed pod dries up and splits open,
releasing the seeds.
8. Seed dispersal
• The seeds fall out of the fruit or seed pod into the soil, or gets carried
to a new location by the wind, water or animals.
• Some seeds have hooks, burrs, or sticky surfaces to help them travel.
• Once they fall on new soil, the life cycle begins again, as the seed goes
into the ground and germinates.