Static or current? Attract or repel? Fourth graders sort out both pairs here. You will name what gets transferred when two objects rub together, decide whether two negatively charged balloons push apart or pull together, and identify the load as the part of a circuit that actually does work like glowing or spinning.
A matching section then connects copper wire, rubber gloves, a light bulb, and a static shock to what each one really does. Add in lightning as a sudden discharge and motors converting electrical energy to mechanical, and you have a strong picture of how charges and energy move through the world.
Style:
Electricity and Circuits
Part A: Fill in the Blank
Write the missing word or number on each line.
1. Rubbing two objects together can transfer electrons from one object to the other.
2. A television converts electrical energy into light and sound energy.
3. A material that slows or stops the flow of electricity is called an insulator.
4. When a negatively charged balloon is brought near small pieces of paper, the paper is attracted to the balloon.
5. A motor converts electrical energy into mechanical energy to make things spin.
6. The rapid movement of electrons through a conductor is called electric current.
7. Two balloons that are both negatively charged will repel each other when brought close together.
8. An electric lightning is a sudden discharge of static electricity between a cloud and the ground.
9. The part of a circuit that uses electricity to do work is called the load.
Part B: Matching
Match each item on the left to the correct answer on the right.
1. Match each item to its correct answer.
copper wire
→ carries electricity through a circuit
sudden discharge of built-up charge
rubber gloves
→ protects hands from electric current
converts electrical energy to light
light bulb
→ converts electrical energy to light
carries electricity through a circuit
static shock
→ sudden discharge of built-up charge
protects hands from electric current
Electricity and Circuits
★ Part A: Fill in the Blank
Write the missing word or number on each line.
1) Rubbing two objects together can transfer electrons from one object to the other.
2) A television converts electrical energy into light and sound energy.
3) A material that slows or stops the flow of electricity is called an insulator.
4) When a negatively charged balloon is brought near small pieces of paper, the paper is attracted to the balloon.
5) A motor converts electrical energy into mechanical energy to make things spin.
6) The rapid movement of electrons through a conductor is called electric current.
7) Two balloons that are both negatively charged will repel each other when brought close together.
8) An electric lightning is a sudden discharge of static electricity between a cloud and the ground.
9) The part of a circuit that uses electricity to do work is called the load.
★ Part B: Matching
Match each item on the left to the correct answer on the right.
1) Match each item to its correct answer.
copper wire
→ carries electricity through a circuit
sudden discharge of built-up charge
rubber gloves
→ protects hands from electric current
converts electrical energy to light
light bulb
→ converts electrical energy to light
carries electricity through a circuit
static shock
→ sudden discharge of built-up charge
protects hands from electric current
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10 Questions
10-15 minutes
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