Food chains and food webs final

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  • Food chains and food webs final

    1. 1. Food Chains and Food Webs Next
    2. 2. Objectives Students will be able to define a food chain and food web Students will construct a food chain and food web by placing producers primary consumers, secondary consumers, and top predators in the correct order. Identify and define the role of organisms within a food chain. Students will explore how humans disrupt natural food chains.Previous slide Next
    3. 3. Discussion Questions: • What is a food chain? •What is a food web? •How are humans apart of the food chain? •How do humans damage food chains and food webs?Previous slide Next
    4. 4. Table of Contents: Section 1: Energy Section 2: Consumers Living things need food Herbivores How do we get energy? How do animals get Carnivores energy? How do animals get Omnivores energy? Summary of Where do plants get their Section 2 energy? Summary of section 1 Review quiz: 2 Review Quiz: 1 Section 3: Food Chains and Food Webs What did we learn today? Food Chains Food Webs Final Quiz Human Interference Summary of section 3 Review Quiz: 3Previous slide Next
    5. 5. Why do living things need food? •People, plants, and animals are all living things. • All living things need air, water, sunlight, and food to stay alive.Previous slide Next
    6. 6. How do we get this energy? •Food contains nutrients that give living things energy. Living things need energy to grow, move, and stay healthy. • Not all living things get their food the same way. Each living thing finds food in its habitat, the environment in which it lives.Previous slide Next
    7. 7. Where do animals get their energy? • Animals and people cannot make their own food. They are consumers, because they must consume, or eat, other living things to energy. • Consumers are divided into more groups, such as herbivores, carnivores, and omnivores. Consumers: Carnivores Omnivores HerbivoresPrevious slide Next
    8. 8. Where do plants get their energy?• Plants get their energy from thesun. Plants are producers. A plantproduces its own food throughphotosynthesis.Photosynthesis:•During photosynthesis, sunlight is usedto combine (mix) water (H2o) and carbondioxide (CO2)to make food.•The food that plants make is calledglucose. Glucose is a type of sugar.Interesting Fact:Plants do not use all the food; they storesome of it away.Previous slide Next
    9. 9. Summary of Section 1: •In section one we learned that all living things need food and energy to survive. People get energy from nutrients in foods. Animals (consumers) get their food by eating other living things. Plants (producers) get their food by photosynthesis. Photosynthesis is when sunlight combines with water and carbon dioxide to make glucose (sugar).  You will now take a short review quiz on section 1.Previous slide Next
    10. 10. Section 1 Review Quiz: 1) A plant is a ___________ a)Producer b) ConsumerPrevious slide Next
    11. 11. 2) A plant produces its own food through _____________ a) Photosynthesis b) Food Web Next
    12. 12. 3) Animals are ________. a) Producers b) consumers Next
    13. 13. Herbivores : • Herbivores are animals that eat plants. •Many animals eat grass, flowering plants, and other parts of trees, such as fruit, roots, and bark. •There are two types of herbivores:  Grazers: Animals that eat grass and small plants near the ground. (can either be a grazer or a browser)  Browsers: Animals that eat leaves, shoots, and twigs.Previous slide Next
    14. 14. Carnivores: •are animals that eat other animals. •Carnivores are predators. Predators hunt other animals for food. The animals they hunt for are called prey. When predators eat herbivores, they are secondary consumers. •When they eat other carnivores, they are tertiary consumers. Large Carnivores Medium Carnivores Small CarnivoresPrevious slide Next
    15. 15. Omnivores:Omnivores eat both plants and other animals. Most omnivores have no trouble finding food, because they are not picky eaters.Interesting Fact:People are also omnivores. We eat different foods to get all the nutrients that our bodies need.‘Previous slide Next
    16. 16. Summary of Section 2: In section two we learned that consumers are divided into three groups: Herbivores: are animals that eat plants. • 2types of herbivores  Grazers: Animals that eat grass and small plants near the ground.  Browsers: Animals that eat leaves, shoots, and twigs. Carnivores (predators): hunt other animals for food Two types of Carnivores:  Secondary Consumers: predators who eat herbivores  Tertiary consumers: predators who eat other animals Omnivores: eat both plants and other animals. • Humans are also omnivores.  You will now take a short review quiz for section2Previous slide Next
    17. 17. Section 2 Review Quiz 1) Is this animal a herbivore, carnivore, or omnivore? a) Herbivore b) Omnivore c)CarnivorePrevious slide Next
    18. 18. 2) Which animal is a herbivore? a) Cow b) Lion Next
    19. 19. Food Chains: A food chain shows how living things rely on each other for food. It also shows how energy is moved from one living thing to another. Each food chain starts with the sun. The sun gives energy to plants.    5) Tertiary Consumers:  Fox Large carnivores (Lion, Tigers, crocodiles) 4) Secondary consumers: Owl (animals that get their energy from plant eating animals.) 3) Primary Consumers: Grass Hopper Herbivores (first living thing that must eat to get energy) 2) Food chain starts with Grass plants being the producers.   Sun 1)Energy: The sun givesPrevious slide plants energy Next
    20. 20. Food Webs: A food web is a group of connected chains. When an animal from one chain is eaten by an animal from another food chain, those animals are part of a food web.Previous slide Next
    21. 21. Human Food Web: People are the top predators of a food chain. When we eat different foods we become part of a food web.Previous slide Next
    22. 22. Human Interference: •The population of people on Earth increases every year. We forget that both people and animals need to eat. •People damage food chains and webs when they change nature by:  Cutting down forests to build farms or homes - destroys the homes and food supplies of animals Using chemicals called pesticides on their lawns or on farms. -They kill bees butterflies, and insects that plants need to grow. Hunting Carnivores - Killing carnivores throws food chains and webs off balance. This will increase the population of other animals.Previous slide Next
    23. 23. Summary of section 3Food Chain:1.Food chain starts with plants being the producers2.Primary Consumers: Herbivores(first living thing that must eat to get energy3. Secondary consumers: Carnivores (animals that get their energy from plant eating animals.)4. Tertiary Consumers: Large carnivores(Lion, Tigers, crocodiles)Human Food Web:•When humans eat different foods they become part of a food web.•People damage food chains and webs when they change nature by:  Cutting down forests to build farms or homes Using chemicals called pesticides on their lawns or on farms. Hunting CarnivoresPrevious slide Next
    24. 24. Section 3 Review Quiz 1) What is the correct food chain order for these living things? c) Tertiary a) Primary Consumer b) Producer e) Secondary Consumer consumer a)d , c, a, b , e d) Energy b)d, b, a, e, cPrevious slide Next
    25. 25. 2) What is the correct food chain order for these living things?1 2 3 4 a) 4,2,3,1 b)4,1,3,2 Next
    26. 26. 2) What is the correct order of the food chain?1)Primary Consumers 2) Energy 2) Tertiary consumers 3)producers 4) Secondary Consumers a)2,4,3,1, 2 b) 2,3, 1,4,2 Next
    27. 27. What did we learn? Vocabulary List: •Photosynthesis: -During photosynthesis, sunlight is used to combine (mix) water (H2o) and carbon dioxide (CO2) to make food. •Herbivores: are animals that eat plants. Two types of herbivores: -Grazers: Animals that eat grass and small plants near the ground. -Browsers: Animals that eat leaves, shoots, and twigs. •Carnivores: are animals that eat other animals. •Omnivores: eat both plants and other animals. •Food Chain: A food chain shows how energy is moved from one living thing to another. •Food Web: A food web is a group of connected chains. Food Chain Order: • 1)producers 2)Primary Consumers 3)Secondary Consumers 4)Tertiary Consumers (plants) ( Herbivores ) (Carnivores) (Large Carnivores)Previous slide Next
    28. 28. Final Quiz: 1) Is this animal a herbivore, carnivore, or omnivore? a)Carnivore b) Herbivore c) OmnivorePrevious slide Next
    29. 29. 2) True or False Plants are consumers? a) True b) False Next
    30. 30. 3) True or False – Humans are omnivores? a) True b) False Next
    31. 31. 4)What is the correct food chain order these living things? 2 3 1 45 a)3,4,1,2,5 b) 3,5,4,1,2 Next
    32. 32. 5) Is this animal a herbivore, carnivore, or omnivore? a)Carnivore b)herbivore c)omnivore Next
    33. 33. 6) Which two organisms in the food web are both secondaryand tertiary consumers? a) Rabbit and Fox b) Bird and Squirrel c) Snake and Eagle Next
    34. 34. Congratulations!!! You have successfully completed this PowerPoint. You now understand how food chains and food webs work.  We will start our human food web project. • Each student will create their own food web.Previous slide

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