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CH 8 Warm Up #1 4/10

CH 8 Warm Up #1 4/10. Answer the following questions about the videos we watched yesterday Which food let off the most heat (potato chip, almond, or brazil nut)? Which one stored the most energy? Which would you eat for getting the most energy?

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CH 8 Warm Up #1 4/10

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  1. CH 8 Warm Up #1 4/10 Answer the following questions about the videos we watched yesterday • Which food let off the most heat (potato chip, almond, or brazil nut)? • Which one stored the most energy? • Which would you eat for getting the most energy? • How do we get the energy out of food? (best guess) • What is one other thing you remember about the video?

  2. Agenda 4/10 • CH 8 Notes #1 • Thinking Maps & Question

  3. CH 8 Notes #1 Matter and Energy

  4. Matter • Anything that has mass and takes up space

  5. Atoms • The smallest unit of matter • Protons (+ charge) • Electrons (- charge) • Neutrons (no charge)

  6. Elements: atoms of the same type • Examples: Carbon, Hydrogen, Oxygen • Non-examples: Carbon dioxide, Water

  7. Chemical bond: the attraction holding atoms together Energy is stored in these bonds

  8. Two or more atoms joined is a molecule • Molecules with at least 2 different elements in them are compounds

  9. Major elements in living things • There are over 100 elements on the periodic table • Only 6 elements make up most of the parts of living things (CHNOPS)

  10. The 6 most common elements in living things (CHNOPS) • C Carbon • H Hydrogen • N Nitrogen • O Oxygen • P Phosphorus • S Sulfur

  11. Check for Understanding • Turn to your neighbor & answer these questions :be ready to share-out for points! • What do we call atoms of the same type? • What holds atoms together? • What is stored in these bonds? • What is CHNOPS?

  12. Matter & Energy • Law of Conservation of Matter & Energy: Matter and energy cannot be destroyed or created, only changed

  13. There are 7 forms of energy, we’re going to focus on these 3 • Light • Heat • Chemical

  14. Living things need energy • Living things need energy to -Grow -Move -Replace/Repair -Cell functions -Body functions

  15. Living things get energy from food by…

  16. Living things get energy from food by breaking and forming new chemical bonds

  17. Important: Some organisms make their own food (e.g. plants). Others must get it by eating (e.g. animals, fungi)

  18. Calories: The energy stored in the chemical bonds of food

  19. Calories: The energy stored in the chemical bonds of food • Food also gives us the pieces for building other molecules (biosynthesis)

  20. Some examples of heat energy being released • A personeats hamburger, allowing her muscles to move • A raccoon eats crayfish, allowing it to keep its body warm • A plant breaks down sugars, heating-up its flower and pumping a smell into the air

  21. CFU 1 = A 2 = B 3 = C 4 = D

  22. All living things need to eat other things to get energy • True • False

  23. CFU: Multiple Choice & Debate 2. Which of these explains how living things get energy from food A. They split the atoms into protons and neutrons B. They absorb heat from the foods C. They break chemical bonds & form new ones

  24. 3) Which food would give you the most energy? • 100 calories • 500 calories • 300 calories • 400 calories

  25. 4. What do living things use energy for? • Grow • Reproduce • Survive • Replace cells

  26. 5. Heat, light, and chemical are all types of: • Energy • Matter • Elements • All three

  27. 6) TRUE/FALSE When paper is burned the chemicals in the paper are destroyed and energy is released

  28. Thinking Maps • Create two circle maps One on Matter One on Energy • Each must include facts for each • On the back write 1 sentence explaining how matter and energy are related

  29. Matter is what all things are made of • Energy is what all things need to move/change

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