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Ls4 plants

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  • 1. Plants LS4 3.08
  • 2. Plants are organisms.
  • 3. Plants are the type of organism that can produce their own food, unlike animals. Animals must consume other organisms for the energy they need.
  • 4. Plants produce food energy in a process called photosynthesis.
  • 5. Three things are needed by plants in order for photosynthesis to occur.
  • 6. Light from the Sun
  • 7. Light from the Sun CO 2 from the air
  • 8. Light from the Sun CO 2 from the air Water from the plants roots
  • 9. Notes:
  • 10. What is the process called in which plants make food? Notes:
  • 11. What is the process called in which plants make food? Photosynthesis Notes:
  • 12. What three things must plants have in order to make food? Notes:
  • 13. What three things must plants have in order to make food? Notes: Light CO 2 water
  • 14.  
  • 15. Plants need small amounts of other substances (vitamins, minerals) to do their best work. Plants get these nutrients from the soil.
  • 16. What do we call the small amounts of vitamins and minerals that plants get from the soil? Notes:
  • 17. What do we call the small amounts of vitamins and minerals that plants get from the soil? Notes: Nutrients
  • 18.  
  • 19. Plants don’t live forever. They grow old and die like every other organism.
  • 20. Plants would disappear from Earth unless they reproduce. “Reproduce” means to make more of the same.
  • 21. The way most plants reproduce is by making seeds .
  • 22. But, before a plant can make a seed, it must get a tiny bit of pollen from a similar plant. This pollen is magnified many times
  • 23. Pollen is made in a plant’s flower. Pollen is a fine powder that can blow on the breezes from one plant to another.
  • 24. But blowing in the wind is not a sure way to get pollen from one plant to another.
  • 25. Sometimes animals help plants move pollen from plant to plant. Plants make nectar, a sweet substance, in their flowers.
  • 26. Pollen sticks to animals as they collect nectar. Some pollen falls off at the next flower. It just takes a tiny bit of pollen for a plant to make a seed.
  • 27.
    • Bees are very important in pollination. Without bees there would be a lot less food for people to eat.
  • 28. How do most plants reproduce (make new plants like themselves)? Notes:
  • 29. How do most plants reproduce (make new plants like themselves)?
    • seeds
    Notes:
  • 30. What must most plants do before they can make seeds? Notes:
  • 31. What must most plants do before they can make seeds? Notes: Get pollen from a similar plant
  • 32. What are two ways that pollen gets from one plant to another? Notes:
  • 33. What are two ways that pollen gets from one plant to another? Notes:
    • Blown by the wind
    • Carried by animals
  • 34. What are two ways that pollen gets from one plant to another? Notes:
    • Blown by the wind
    • Carried by animals
  • 35. What is the most important animal for pollination of plants? Notes:
  • 36. What is the most important animal for pollination of plants? Notes: Bees
  • 37. After pollination has taken place, the plants can make seeds.
  • 38. A seed contains a baby plant together with a supply of food to get it started. Ungerminated plant Plant food seed
  • 39. After it germinates, the new plant must reach the sun for energy before the food in the seed runs out.
  • 40. Some plants produce seeds in ways that make food for animals.
  • 41. Once again animals can help the plants.
  • 42. Once again animals can help the plants. This time, by dispersing seeds so new plants can grow in different areas.
  • 43. Animals drop some seeds as they move around. Animals help plants by dispersing seeds.
  • 44.
    • When animals drop seeds it helps the plant reproduce in new places.
  • 45. What is another way that animals help plants? Notes:
  • 46. What is another way that animals help plants? Dispersing seeds Notes:
  • 47. What does the word “disperse” mean? Notes: To spread around in different places.
  • 48.  
  • 49. A seed can stay dormant (asleep) for years. They usually won’t wake up unless there is water.
  • 50. The word for a seed “waking up” and beginning to grow is germination.
  • 51. Germination is also called sprouting.
  • 52. After the seed germinates, the stem grows up and the roots grow down.
  • 53. Some plants send down one strong, deep root called a taproot.
  • 54. Other plants have a system of many softer roots called fibrous roots.
  • 55. Here are plants with a taproot and a fibrous root side by side. taproot fibrous root
  • 56.
    • Every kind of root has tiny root hairs that absorb water for the plant.
  • 57. Other plants have structures that store a lot of food energy in their roots. These roots are called tubers.
  • 58.
    • Potatoes, radishes, and carrots are all tubers.
  • 59.
    • As plants grow above the ground, the stem holds the leaves up in the air.
  • 60.
    • The stem has tubes that carry water and nutrients from the roots up to the leaves.
  • 61.
    • Plants must have light for energy. The stem holds leaves up to get more light.
  • 62.
    • The leaves must have sunlight to make the food that the plant needs to live and grow.
  • 63.
    • Leaves also give off water vapor as they make food. This water is called transpiration .
  • 64.
    • Leaves also give off water vapor as they make food. This water is called transpiration. Bigger leaves give away more water.
  • 65.  
  • 66.
    • What is the word for water vapor that a plant releases through its leaves?
    Notes:
  • 67.
    • What is the word for water vapor that a plant releases through its leaves?
    Notes: transpiration
  • 68.
    • What are the two words for a seed beginning to grow into a plant?
    Notes:
  • 69.
    • What are the two words for a seed beginning to grow into a plant?
    Notes:
    • germination
  • 70.
    • What are two words for a seed beginning to grow into a plant?
    Notes:
    • germination
    • sprouting
  • 71.
    • What kind of root is strong and grows deep?
    Notes:
  • 72.
    • What kind of root is strong and grows deep?
    Notes: taproot
  • 73.
    • What kind of root system has a lot of smaller roots?
    Notes:
  • 74.
    • What kind of root system has a lot of smaller roots?
    Notes: Fibrous roots
  • 75.
    • What are the tiny roots that absorb water?
    Notes:
  • 76.
    • What are the tiny roots that absorb water?
    Notes: root hairs
  • 77.
    • What kind of roots store large masses of food energy?
    Notes:
  • 78.
    • What kind of roots store large masses of food energy?
    Notes: tubers
  • 79.  
  • 80.
    • Sometimes plants must make changes if they are to survive in their ecosystem.
  • 81.
    • Such changes are called adaptations.
  • 82.
    • A plant in the desert must adapt to very low rainfall and a lot of intense sunshine.
  • 83.
    • Big leaves that give away a lot of water as transpiration wouldn’t help a plant in the desert.
  • 84.
    • Desert plants have adapted by developing very thin leaves that don’t give away much water.
  • 85.
    • Cactus needles are leaves that have adapted to a hot dry environment.
  • 86.
    • It doesn’t rain much in the desert and when it does rain the water doesn’t soak very deep into the soil.
  • 87.
    • It doesn’t rain much in the desert and when it does rain the water doesn’t soak very deep into the soil.
    Deep roots wouldn’t really help a cactus.
  • 88.
    • Cactus plants have adapted to this.
  • 89.
    • Cactus plants have shallow roots, close to the surface, that reach as far out as they can.
  • 90.
    • This is a good adaptation in a place where rain doesn’t soak deep into the ground.
  • 91.
    • Big leaves would be a good adaptation where it rains a lot and big trees steal most of the sunlight.
  • 92.  
  • 93. What is the word for a change that an organism makes to help in live in its environment? Notes:
  • 94. What is the word for a change that an organism makes to help in live in its environment? Notes: adaptation
  • 95. Trees in different climates have to adapt to their local conditions.
  • 96. In a tropical rainforest, near the equator, it is always hot and it rains almost every day. Many plants thrive here.
  • 97. Trees may adapt here by growing very high to catch more sunlight.
  • 98. Plants that don’t grow high need to adapt with large leaves to catch more of the limited sunlight that makes it down low.
  • 99.  
  • 100. Deciduous forest dee sid jew us
  • 101. Deciduous forest dee sid jew us Temperate climates are hot in the summer.
  • 102. Deciduous forest dee sid jew us But they can be very cold in the winter.
  • 103. Deciduous trees adapt to hot summers and cold by having lots of leaves in summer, dropping them all in autumn, and hibernating all winter. summer winter
  • 104.  
  • 105.
    • Deserts
  • 106.
    • Most desert trees have adapted by growing near the few sources of water.
  • 107.
    • Or they have adapted small leaves that don’t lose a lot of water through transpiration.
  • 108.  
  • 109. No trees can adapt to grow in ground that is always frozen. In the tundra , in the far north and south latitudes, there are no trees.
  • 110.
    • If an organism can’t adapt to its environment, it won’t survive.

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