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• Each plant or animal has structures that serve different functions in growth, survival, and reproduction.
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• Plants and animals have life cycles that include the beginning of life, growth and development, reproduction and death.
Ideas
• Plants are made up of different parts. Each part has a certain job. These parts can also help us to identify plants.
• There are seven basic requirements that plants need in order to grow properly.
Plant Basic Needs
• Room to grow
• Temperature
• Light
• Water
• Carbon dioxide (air)
• Nutrients
• Time
Vocabulary
• Plant Structures – “parts of the plant”– Ex. Leaves, root, stem, flower, seeds, fruit
• Leaves – help the plant make food through a process known as photosynthesis.
• Root – help hold the plant in place and take in water and nutrients the plant needs.
• Stem – supports or holds up the plant.• Flower – helps the plant reproduce.• Seeds – are made from flowers when plants
reproduce.• Fruit – the edible part of a plant which contains
seeds.
Roots Functions
• Most roots grow in soil or water.
• The roots hold the plant in the ground.
• A plant uses its roots to get water.
• The water goes through the roots into the plant.
• Some roots that we eat are: carrots, beets, turnips, radishes, and sweet potatoes.
Stem Functions
• The stem is the part of a plant between the roots and the leaves.
• The stem holds up the plant.
• The stem also carries water and food through the stem to the plant.
• Some stems that we eat are: celery, broccoli, asparagus, white potatoes, and sugar cane.
Leaf Functions
• A leaf grows on the stem or branch of a plant.
• A green plant makes food in its leaves through a process known as photosynthesis.
• The leaf has tiny holes that let water vapor and air pass through.
• The leaves need sunlight, air, and water to make the food for the plant.
• Some leaves that we eat are: lettuce, brussel sprouts, spinach, and parsley.
Fruit and Seed Functions
• Seeds are made from flowers.
• Many plants grow from seeds.
• Fruits hold seeds. • Some fruits that we
eat are: tomatoes, oranges, pears, watermelon, and strawberries
Structures of a flower
• Petal – Surrounds the male and female parts and is brightly colored to attract insects which help pollinate the flower.
• Stamen – The male part of the flower which produces pollen.
• Pistil – The female part of the flower which contains the seeds.
• Ovary – The part of the pistil which holds the flower’s seeds.
• Pollen – The yellowish powdery substance on the stamen used to fertilize the plant.
• Seeds – Found inside the ovary.
Flower Functions
• Flowers grow on the stem of plants.
• Flowers make seeds. Many plants grow from seeds.
• Flowers make fruits. Fruits hold the seeds of the plant.
Lets see what you learned…
• Draw a plant. Label its structures.• Explain the function of each structure. Don’t
forget to tell how the function contributes to the growth, survival, or reproduction of the plant.
• Draw a flower. Label its structures.• Explain the function of each structure. Don’t
forget to tell how the function contributes to the growth, survival, or reproduction of the plant.
What Am I ?
Using the vocabulary worksheet, help your partner learn the names of plant parts by giving clues. For example, “I take in water and minerals from the soil. What am I ?”
Give your partner one clue for each vocabulary word. Once you have completed the list with your partner, switch.