Book: Science Resources, Grade 4
ISBN-10: 1-59242-996-3
Physical Sciences
Go to Questions
Go to Directory of Articles & Books
Go to Directory of Science
Answer Key
Section: Magnetism and Electricity
Making Connections
Making Static
1. Static electricity starts with atoms.
2. Atoms are the small particles that everything is made of.
3. Atoms have a nucleus in the center.
4. False, the nucleus has a positive charge.
5. Atoms have tiny electrons.
6. Electrons move around the nucleus.
7. True, electrons have negative charge.
8. Answers will vary
Edison Sees the Light
9. No, Thomas Edison didn't invent the electric lightbulb.
10. Thomas Edison invented the photograph, the motion picture camera and the first copy machine.
11. The filament is the part of the lightbulb that actually makes the light.
12. Answers will vary (on the top)
13. The filament burns as the current of electricity flows through it.
14. No, electricity can't be delivered to the bulb if the lightbulb is not in the bulb holder.
15. The electric current has energy.
16. heat energy and light energy
17. The electric energy converted to heat energy and light energy.
18. Thomas Edison
19. Lewis Latimer got the patent for the carbon filament.
20. Inventors get patents from the government when they invent something new.
21. Thomas Edison bought Latimer's patent.
22. Answers will vary
23. Lewis Latimer wrote books on electrical engineering.
24. Lewis Latimer wrote patents for new inventions.
25. Lewis Latimer was a founding member of the Edison Pioneers.
26. Lewis Latimer was an African American member of the Edison Pioneers.
Summary: Making Connections
27. Electrons are tiny particles that go around the larger nucleus of an atom.
28. Electrons have negative charges.
29. The nucleus has a positive charge.
30. negative charge
31. positive charge
32. Items that have negative charges repel.
33. True, two objects with a negative charge always repel.
34. True, two objects with a positive charge also repel.
35. The objects will attract
36. True, opposite charges attract.
37. Current electricity is a charge on the move.
38. current electricity
39. A copper wire is an electricity conductor.
40. circuit
41. Answers will vary
42. energy
43. Conversion means change
44. When electric energy is traveling around a circuit then it converts to light energy.
45. When electric energy is converted to motion energy.
46. Answers will vary
ISBN-10: 1-59242-996-3
Physical Sciences
Go to Questions
Go to Directory of Articles & Books
Go to Directory of Science
Answer Key
Section: Magnetism and Electricity
Making Connections
Making Static
1. Static electricity starts with atoms.
2. Atoms are the small particles that everything is made of.
3. Atoms have a nucleus in the center.
4. False, the nucleus has a positive charge.
5. Atoms have tiny electrons.
6. Electrons move around the nucleus.
7. True, electrons have negative charge.
8. Answers will vary
Edison Sees the Light
9. No, Thomas Edison didn't invent the electric lightbulb.
10. Thomas Edison invented the photograph, the motion picture camera and the first copy machine.
11. The filament is the part of the lightbulb that actually makes the light.
12. Answers will vary (on the top)
13. The filament burns as the current of electricity flows through it.
14. No, electricity can't be delivered to the bulb if the lightbulb is not in the bulb holder.
15. The electric current has energy.
16. heat energy and light energy
17. The electric energy converted to heat energy and light energy.
18. Thomas Edison
19. Lewis Latimer got the patent for the carbon filament.
20. Inventors get patents from the government when they invent something new.
21. Thomas Edison bought Latimer's patent.
22. Answers will vary
23. Lewis Latimer wrote books on electrical engineering.
24. Lewis Latimer wrote patents for new inventions.
25. Lewis Latimer was a founding member of the Edison Pioneers.
26. Lewis Latimer was an African American member of the Edison Pioneers.
Summary: Making Connections
27. Electrons are tiny particles that go around the larger nucleus of an atom.
28. Electrons have negative charges.
29. The nucleus has a positive charge.
30. negative charge
31. positive charge
32. Items that have negative charges repel.
33. True, two objects with a negative charge always repel.
34. True, two objects with a positive charge also repel.
35. The objects will attract
36. True, opposite charges attract.
37. Current electricity is a charge on the move.
38. current electricity
39. A copper wire is an electricity conductor.
40. circuit
41. Answers will vary
42. energy
43. Conversion means change
44. When electric energy is traveling around a circuit then it converts to light energy.
45. When electric energy is converted to motion energy.
46. Answers will vary
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