2. electricity static electricity grounding electric current circuit resistor Lesson 4 Splash

3. What is static electricity? Lesson 4 a

4. How can electricity flow? A circuit is formed when an electric current passes through an unbroken path of conductors. Lesson 4 b

5. What kinds of circuits are there? series circuit parallel circuit Lesson 4 c

6. How can you use electricity safely? Lesson 4 d

7. A _______________ is formed when an electric current passes through an unbroken path of conductors. _______________ is the movement of electrons. _______________ is the buildup of charged particles. static electricity electricity Vocabulary circuit Electricity Static electricity Lesson 4 Vocab Review a

8. electric current grounding Vocabulary _______________ is a flow of electricity through a conductor. An object in an electrical circuit that resists the flow of electrons is called a _______________. _______________ occurs when a conductor shares its excess charge with a much larger conductor. resistor Electric current Grounding Lesson 4 Vocab Review b

9. Sequence An object rubs against another object or surface. Electrons are exchanged. The buildup of electrical charge attracts the electrons to protons in the other object. What happens as objects rub together and form sparks? End of Lesson The electrons discharge through the air, creating a spark Lesson 4 GO Review

10. Lesson 4 Vocab a

11. Lesson 4 Vocab b

12. Lesson 4 Vocab c

13. Lesson 4 Vocab d

14. circuit (sûr΄kit) A loop formed when electric current passes through an unbroken path of conductors. (p. 668) Lesson 4 Vocab e

15. Lesson 4 Vocab f

16. magnetism magnetic field electromagnet generator alternating current magnetic levitation Lesson 5 Splash

17. What is magnetism? Magnetism is the ability of an object to pull on another object that has the magnetic property. Lesson 5 a

18. What are electromagnets? S N N S Lesson 5 b

19. How can magnets produce electricity? axle turbine water in water out As the coils spins next to magnets, high-voltage electricity is generated. Lesson 5 c

20. What is magnetic levitation? train magnets track magnets Lesson 5 d

21. What happens when a bar magnet is cut in half? Main Idea Two bar magnets are formed, each with a north and south pole. Lesson 5 Main Idea Review

22. alternating current magnetic field Vocabulary _________________ is the lifting of an object by means of magnetic forces. The directional lines of the magnetic forces around a magnet are called the _________________. _________________ is electric current that rapidly changes directions. magnetic levitation Magnetic levitation Alternating current Lesson 5 Vocab Review a

23. electromagnet magnetism Vocabulary An electric circuit that produces a magnetic field is called an _______________. _______________ is the ability of an object to push or pull on another object that has the magnetic property. A _______________ is a device that creates electric current by spinning an electric coil between the poles of a magnet. Magnetism generator Lesson 5 Vocab Review b

24. Compare and Contrast use electro- magnets speakers carry sound How are electric doorbells and speakers similar and different? End of Lesson doorbells ring Lesson 5 GO Review

25. Lesson 5 Vocab a

26. magnetic field (mag·net΄ik fēld) A region of magnetic force around a magnet, represented by lines. (p. 679) Lesson 5 Vocab b

27. Lesson 5 Vocab c

28. Lesson 5 Vocab d

29. Lesson 5 Vocab e

30. magnetic levitation (mag·net΄ik lev΄i·tā΄shәn) The lifting of an object by means of magnetic forces. (p. 684) Lesson 5 Vocab f