A student wants to design a complete, simple circuit for a class project. The student has more

materials available than are needed for the project.

What does a complete, simple circuit require to work?

• wire and a switch

• wire and a light bulb

• wire, a battery, and a switch

• wire, a battery, and a light bulb

What is Static Electricity?

• is the buildup of an electrical charge in or on the surface of an object

• the flow of an electric charge through a conductor

• are any type of object through which an electric current can flow

Lightning is

• circuit

• discharge of static electricity

• wire

• core into a temporary magnet

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NGSS.MS-PS2-5

Electricity and magnetism are connected to each other. Electricity can produce magnetism. When an

electric current flows through a wire, the current creates a very small magnetic field.

• True

• False

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NGSS.MS-PS2-3

Conductors are any type of object through which an electric current can flow

• True

• False

Insulators are any type of object through

which an electric current cannot flow. Glass, plastic, and rubber are very common insulating materials. Insulators are used to protect people from electric currents.

• True

• False

The student uses only three of the materials available to build a complete circuit that conducts

electricity. Which THREE are necessary?

• battery to provide energy to the circuit

• light bulb to show that the circuit conducts electricity

• wire to connect parts of the circuit and conduct electricity

• switch to conduct electricity in the circuit

• compass to show that the circuit conducts electricity

• 
• 

• step 5: Connect a test material to the open ends of wire 1 and wire 3.

  step 6: Make observations, and repeat step 5 with a different test material.

  conclusion: If the bulb lights up, the material is a conductor. If the bulb does not light up, the material

  is an insulator.

• step 5: Connect a test material to the open ends of wire 1 and wire 3.

  step 6: Make observations, and repeat step 5 with a different test material.

  conclusion: If the bulb lights up, the material is an insulator. If the bulb does not light up, the material

  is a conductor.

• step 5: Connect the open ends of wire 1 and wire 3 to each other to complete the circuit.

  step 6: Touch a test material to the completed circuit, and record observations.

  conclusion: If the bulb lights up, the material is an insulator. If the bulb does not light up, the material

  is a conductor.

• step 5: Connect the open ends of wire 1 and wire 3 to each other to complete the circuit.

  step 6: Touch a test material to the completed circuit, and record observations.

  conclusion: If the bulb lights up, the material is a conductor. If the bulb does not light up, the material

  is an insulator.

• Magnet 1 should be used to pick up many small magnetic objects at once because the temporary magnet can pick up as many objects as the permanent magnet can.

• Magnet 1 should be used to pick up magnetic objects in one location and drop them off in another location because temporary magnets can be turned on and off.

• Magnet 1 can be used in all the ways magnet 2 is used because temporary magnets can be made stronger or weaker and permanent magnets cannot.

• Magnet 2 should be used to pick up magnetic objects in places where there is no power supply because permanent magnets do not run out of energy.

• Magnet 2 should be used to pick up large magnetic objects because permanent magnets are stronger than temporary magnets.

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NGSS.MS-PS2-3