1. 4.1 Catalyst 1. What are three examples of when we talk about energy?

2. 4.1 Objectives Define energy Describe the Law of Conservation of Energy Describe the different types energy and how they change forms

3. 4.1 Agenda Catalyst 1: energy intro 2: energy types through reading 3: energy transformations – Notes – stations

4. Energy is the ability to do work. It is vital to all life on Earth. – Potential: stored energy – Kinetic: energy of motion

5. Law of Conservation of Energy Energy is never created or destroyed – Changes from one form to another

6. Law of Conservation of Energy How much energy passes from one level to the next??? What happens to the rest of the energy? Does it disappear???

7. There are many different types of energy!

8. Reading Grab green global science book from the front of the room Turn to p. 86-89 Complete graphic organizer

9. Mechanical Energy

10. Heat Energy

11. Radiant (light) energy

12. Electrical Energy

13. Chemical Energy

14. Nuclear

15. What type of energy??? Temperature Light waves Energy from a running television Energy from a lamp Food Wood Fusion Sun Ball moving through the air

16. Energy transformation examples Use of energyEnergy transformations Burning WoodChemical  Heat PhotosynthesisElectromagnetic  Chemical Steam turns turbineHeat  Mechanical Turning on a battery-powered flashlight Chemical  Electrical Turbine spins generatorMechanical  Electrical

17. What is the energy transformation? Battery turns on calculator Burning paper Plug in a fan to turn it on You put gasoline in your car to make it move

18. Energy changes forms—we can use certain resources to give us energy from an electrical socket…

19. Before we get started, the basics… Electricity: the flow of electrons Turbine: have rotating parts Generator: converts mechanical energy to electrical energy

20. Stations Let’s do one example of energy transformation together… 4 stations – 4 minutes each – Complete graphic organizer

21. Electricity Reflection Questions 1.What form of energy are we always ending with? 2.Look at wood, coal and oil examples: what type of energy are we starting with? 3.Look at water and wind examples: what type of energy are we starting with? 4.How are the water and wind examples similar from wood, coal and oil? 5.How are the water and wind examples different from wood, coal and oil?

22. 4.1 Homework