Plant Life Cycle

1
Plant life cycles

• Understand how plants grow and reproduce.
• Recognize the life cycles of different types of
  plants.

http//www.youtube.com/watch?vls6wTeT2cKA
2
Inquiry Investigation

• What do plants need to survive? Make a
  Hypothesis!
• What does a seed need to grow? Make a Hypothesis!
  

3
Vocabulary Chapter 1 Lesson 2

• Cone- a structure in conifers that makes seeds.
• Embryo- a young plant inside a seed.
• Flower- a structure in flowering plants that
  makes seeds.
• Fruit- a structure that holds seeds.
• Life Cycle- all of the stages in an organisms
  life.
• Pollen- a powder made by the male part of a
  flower or male cone.
• Pollination- the process that takes place when
  pollen moves from the male part of a flower to
  the female part of a flower.
• Seed- a structure that can grow into a new plant.

4
How do plants grow?
Parts of a Seed

• Did you know that when you eat corn, peas, or
  nuts, you are eating seeds? Seeds come in all
  shapes and sizes, but all have the same function.
  
• A seed is a structure that can grow into a new
  plant. It holds a young plant that is ready to
  grow. This young plant is called an embryo.
• A seed has parts that help an embryo survive. It
  holds stored food that the embryo uses to grow.
  It has a tough covering that protects the embryo.
  

covering
stored food
5
From Seed to Plant

• When a seed is planted in the soil, it can
  germinate, or begin to grow. A seed needs water,
  nutrients, and the right temperature to
  germinate. When a seed begins to germinate, it
  soaks up water. That makes it swell up and break
  through its covering. The embryo grows out of the
  seed. It grows into a small plant called a
  seedling. A seedling can grow into an adult
  plant.

http//www.youtube.com/watch?v3nRVZPJdXOo
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(No Transcript)
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Parts of a Plant
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Attract pollinators and make seeds that will
someday grow into new plants
Supports the plant and carries water and
nutrients up and down to all parts of the plant
Food factories! They catch energy from sunlight
and use it to turn the air and water into food
Are hidden underground but are very important to
the plant. Roots hold the plant steady in the
ground, soak up water and nutrients from the soil
and even store food for the future.
9
How do plants make seeds?

• A flower is a plant structure that makes seeds.
  Pants that use flowers to make seeds are called
  flowering plants.
• Flowers make seeds. Flowers have pollen and eggs.
  When pollen and an egg come together, a seed can
  form.
• Wind may blow pollen from one flower to another.
  Bees can carry pollen too. They drink a sweet
  liquid called nectar, from the flower. Sticky
  pollen clings to their bodies. Then they carry it
  to different flowers.

10
How seeds Travel

• Planting
• Wind
• Animals