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Stand alone project_final2
Food is defined scientifically as matter and energy that provides living things with the materials and fuel they need to live, grow, and reproduce. Matter provides the physical building blocks and energy powers all of the functions within cells and organisms. Living things get energy and matter by consuming other organisms within a food web - producers like plants get energy from the sun through photosynthesis, consumers obtain energy by eating other organisms, and decomposers get energy from breaking down waste and dead matter. All organisms depend on each other for the transfer of energy and matter throughout the food web.
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Stand alone project_final2
- 1.
- 2. Sounds like asimple question!
- 3. We all know whatfood is!
- 4. Food is whatwe eat for breakfast, lunch and dinner. but,
- 5. To understand howliving things get their food, you need to know the scientific definition for the word food.
- 6. People have many waysof thinking about what food is.
- 7. Scientists experimented and found out thatthe things we take into our bodies do different things.
- 8. For example… Water doesnot do the same thing for your body that meat or sugar do.
- 9. Scientific Definition Food ismatter(building materials) that contain energy that living things can use to live and grow.
- 10. All living thingsuse the energy and matter in food to grow and to keep all their parts working properly.
- 11. Matter is thestuff (materials) that things are made of. Scientists usually define matter as anything that takes up space and has mass. Matter provides the physical building blocks that living things use to grow (become bigger).
- 12. Energy is whatmakes all your cells and body parts work. It gives your body the power to breathe, to move blood, to move muscles, to repair cuts, to think, and all the other things your body does.
- 13. Livings things needboth matter and energy.
- 14. How can wefind out what materials are food?
- 15. Living things getall of their energy from food. Without food, they have no energy to continue living.
- 17. Foods with lotsof calories have lots of energy stored in them. We can tell whether materials are food by looking to see if they contain calories.
- 18. What’s the matterwith you?
- 19.
- 20. Food also hasmatter. Without food, living things have no building materials to grow and take care of all the things necessary to survive.
- 21. We can tellwhether materials have matter by looking to see if they have mass.
- 22. Are these materialsfood? sugar vitamins
- 23. Remember if it’sfood then it must have … Calories=energy Matter/mass=grams
- 24. Why does thisall matter? Well, all living things are connected to one another in what scientists call food webs. Each organism in a food web has a specific purpose related to food!
- 25. Living things dependon one another to get the food energy they need to live and grow.
- 26. In every foodweb, there are three main types of organisms: Producers Consumers Decomposers
- 27. And then therewas light!
- 28. Producers make theirown food using energy from the sun.
- 29. Consumers get their foodenergy from other organisms.
- 30. Decomposers get theirfood energy by eating once-living things.
- 31. Most producers are greenlike grass, trees, shrubs, a nd vines. Producers are important because they are the only organisms that can use energy from the sun to make their own food energy.
- 32. Plants get theirfood through a process called photosynthesis
- 33. photo+synthesis photo=light synthesis=putting together
- 34.
- 35. Energy enters most ecosystemsand food webs as light from the sun. However, living things cannot use sunlight directly to get energy to live and grow.
- 36. Basic photosynthesis… Sun Light from the sun has to be converted into chemical energy stored in food molecules…
- 37. photosynthesis at work… Theplant uses the Sun energy in sunlight to build high-energy sugar molecules out of Light Energy low-energy molecules.
- 38. photosynthesis The low-energy molecules Sun are water and carbon dioxide. Light Energy Carbon Dioxide Water
- 39. photosynthesis The high-energy Sun bonds within sugar, when broken, release usable energy for the Light Energy plant to live and Carbon Dioxide grow. Sugars Water
- 40. photosynthesis Sun Sugars stored within the plant Carbon Dioxide are also the energy source/food for Light Energy animals that eat the plant. Sugars Water
- 41. photosynthesis The plant needsthe sugars for its own source of energy to live. The Sun sugars are made in the leaves through photosynthesis and then Light Energy move throughout the plant to give energy to Sugars every cell in the plant.
- 42. photosynthesis Oxygen is Sun released from the plant as non-energy Light Energy supplying matter. Oxygen
- 43. Put it alltogether… Basic Photosynthesis Sun Carbon Dioxide Light Energy Oxygen Sugars Water
- 44. Food and energychains begin with producers, which convert the energy in sunlight into chemical energy in food.
- 45. What’s next inthe food chain?
- 46.
- 47. Consumers get foodenergy by eating other organisms.
- 48. Types of consumers… Herbivores are consumers that get food energy by eating plants.
- 49. Carnivores are consumers that getfood energy by eating only other animals.
- 50. Omnivores are consumers that getfood energy by eating both plants and animals.
- 51. What’s next inthe food chain?
- 52.
- 53. Decomposers are a specialcategory that gets food by feeding on dead and decaying things.
- 54. Decomposers break downmatter from dead producers and consumers into smaller and smaller particles that are released into the environment as air, water, and soil.
- 55. These particles, callednutrients, can be used again by plants for matter, but not for energy.
- 56. Common decomposers include… worms mushrooms mold
- 57. So we havea simple food chain?
- 58. Food chains caninterlink making a food web Hognose Snake Hawk Praying Mantis Toad Garter Snake Rabbit Sparrow Spider Grasshopper Mouse Grass
- 59. Confused? For now remember…
- 60. All living thingsare connected to one another and has a specific purpose… You guessed it…
- 61.
- 62. Credits Slide Number 2:Steven Depolo, “Qiqi Sandmann’s Ribs” April 17, 2011 via Flickr, Creative Commons Attribution. Slide Number 7: Pacific Northwest National Laboratory, “Food Services and Process Measurement Laboratory” June 17, 2009 via Flickr, Creative Commons Attribution. Slide Number 12 and 44: Barbara Blmiers, “Nature-Animal-Wildfire-White-tailed-Deer” October 16, 2011 via Flickr, Creative Commons Attribution. Slide Number 17: Brandon Baunach, “Crying Baby” August 8, 2007 via Flickr, Creative Commons Attribution. Slide Number 22: Loiez Deniel, “Cat vs. Fish” September 4, 2009 via Flickr, Creative Commons Attribution. Slide Number 28, 48, 49, and 53: Ryan Steele, “Mushrooms” August 15, 2004 via Flickr, Creative Commons Attribution. All other images were created using an IPhone.