science

• Pistil


  The female part of the flower shaped like a bowling pin that is made up of the stigma, style, ovary, and ovule
• Stigma


  The sticky bulb at the center of the flower at the top of the pistil. Pollen grains attach to the stigma.
• Style


  A long stalk that holds up the stigma. Pollen travels down the style to the ovary.
• Ovary


  The enlarged base of the pistil where seeds develop. A mature ovary becomes the fruit of the plant.
• Ovule


  Small parts inside the ovary that when fertilized with pollen become seeds.
• Stamen


  The male parts of the flower that surround the pistil
• Anthers


  The top of the stamen stalk that is filled with pollen. When the pollen is ready to be spread, the anthers open up to release pollen.
• Filament


  The long thin stalk that supports the anther.
• Petals


  The soft parts surrounding the pistil and stamen that are often brightly colored to attract pollinators.
• Sepal


  The small leaves directly under a flower
• Nectar


  A sweet sticky substance produced by flowers to attract pollinators and used by bees to make honey
• Some flowers, such as those on pumpkin plants, have only stamens (the male part) or pistils (the female part). They are called imperfect flowers.
• Other plants, such as tomatoes, have both stamens and pistils and are called perfect plants.
• Pollination


  1. Pollen from the male parts of one flower connects with the female parts of another flower

  2. Plants make flowers to attract pollinators to do this for them

  3. Pollinators can be bees, flies, beetles, moths, hummingbirds, bats, and other creatures that visit flowers

  4. They travel from flower to flower to gather the nectar and pollen to feed themselves and their young

  5. When a pollinator goes into a flower, tiny grains of pollen from the anthers of the flower (the male parts) stick to their bodies

  6. When the pollinator visits another flower of the same species, some of this pollen brushes onto the sticky stigma at the top of the pistil

  7. The pollen travels from the stigma down the style to the ovary

  8. When an ovule is fertilized, a seed is made

  9. Some flowers are pollinated by the wind
• Making the Flower


  1. Start with three to six pieces of tissue paper (5 x 7 or larger)

  2. Fold each piece into an accordion (about 2 inches for each fold)

  3. Place all accordion strips in one pile

  4. Tie the center of the pile with a green pipe cleaner, which will serve as the stem

  5. Pull each layer of tissue paper out around the stem, creating petals

  6. To create the stamens: Glue four Q-Tips to the tissue paper in a circle in the center of the flower. (The soft tips act as the anthers, while the stem acts as the filament.) For smaller (5 x 7) tissue pieces, you can cut the Q-tips in half.

  7. To create a pistil: Students trace precut samples in the shape of a bowling pin about the height of the Q-tips. Put glue on the top of this bowling pin piece and dip it in glitter for the pollen. Glue the pistil in the center of the Q-Tips.
• Flower Anatomy Activity


  • Petal
  • Sepal
  • Stamen
  • Anther
  • Filament
  • Pistil
  • Stigma
  • Style
  • Ovary
  • Ovule
• Pistil


  The female part of the flower shaped like a bowling pin that is made up of the stigma, style, ovary, and ovule
• Stigma


  The sticky bulb at the center of the flower at the top of the pistil. Pollen grains attach to the stigma.
• Style


  A long stalk that holds up the stigma. Pollen travels down the style to the ovary.
• Ovary


  The enlarged base of the pistil where seeds develop. A mature ovary becomes the fruit of the plant.
• Ovule


  Small parts inside the ovary that when fertilized with pollen become seeds.
• Stamen


  The male parts of the flower that surround the pistil
• Anthers


  The top of the stamen stalk that is filled with pollen. When the pollen is ready to be spread, the anthers open up to release pollen.
• Filament


  The long thin stalk that supports the anther.
• Petals


  The soft parts surrounding the pistil and stamen that are often brightly colored to attract pollinators.
• Sepal


  The small leaves directly under a flower
• Nectar


  A sweet sticky substance produced by flowers to attract pollinators and used by bees to make honey
• Some flowers, such as those on pumpkin plants, have only stamens (the male part) or pistils (the female part). They are called imperfect flowers.
• Other plants, such as tomatoes, have both stamens and pistils and are called perfect plants.
• Pollination


  1. Pollen from the male parts of one flower connects with the female parts of another flower

  2. Plants make flowers to attract pollinators to do this for them

  3. Pollinators can be bees, flies, beetles, moths, hummingbirds, bats, and other creatures that visit flowers

  4. They travel from flower to flower to gather the nectar and pollen to feed themselves and their young

  5. When a pollinator goes into a flower, tiny grains of pollen from the anthers of the flower (the male parts) stick to their bodies

  6. When the pollinator visits another flower of the same species, some of this pollen brushes onto the sticky stigma at the top of the pistil

  7. The pollen travels from the stigma down the style to the ovary

  8. When an ovule is fertilized, a seed is made

  9. Some flowers are pollinated by the wind
• Making the Flower


  1. Start with three to six pieces of tissue paper (5 x 7 or larger)

  2. Fold each piece into an accordion (about 2 inches for each fold)

  3. Place all accordion strips in one pile

  4. Tie the center of the pile with a green pipe cleaner, which will serve as the stem

  5. Pull each layer of tissue paper out around the stem, creating petals

  6. To create the stamens: Glue four Q-Tips to the tissue paper in a circle in the center of the flower. (The soft tips act as the anthers, while the stem acts as the filament.) For smaller (5 x 7) tissue pieces, you can cut the Q-tips in half.

  7. To create a pistil: Students trace precut samples in the shape of a bowling pin about the height of the Q-tips. Put glue on the top of this bowling pin piece and dip it in glitter for the pollen. Glue the pistil in the center of the Q-Tips.
• Flower Anatomy Activity


  • Petal
  • Sepal
  • Stamen
  • Anther
  • Filament
  • Pistil
  • Stigma
  • Style
  • Ovary
  • Ovule