Conductor and insulator interactive worksheet - Free Printable

Here is the step-by-step solution to the worksheet.

Part 1: Complete the sentences

Step 1: Analyze the word bank.
The available words are: `allow`, `material`, `electrons`, `pass`, `does not`, `allows`, `electrons`, `flow`, `material`.

Step 2: Solve the first sentence.
"A conductor is a [blank] that [blank] [blank] to [blank]"
* Logic: A conductor is defined as a substance (material) that lets electricity move through it. Electricity is made of tiny particles called electrons.
* Filling the blanks:
* "A conductor is a material..."
* "...that allows..."
* "...electrons..."
* "...to flow."
* Result: A conductor is a material that allows electrons to flow.

Step 3: Solve the second sentence.
"An insulator is a [blank] that [blank] [blank] to [blank]"
* Logic: An insulator is the opposite of a conductor. It is a substance that stops electricity.
* Filling the blanks:
* "An insulator is a material..."
* "...that does not..."
* "...allow..." (Note: "allow" fits here grammatically with "does not")
* "...electrons..."
* "...to pass." (Note: "pass" is the remaining verb that fits the context of movement).
* Result: An insulator is a material that does not allow electrons to pass.

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Part 2: Check the box (Conductor or Insulator)

Step 4: Evaluate each material.
* Copper: It is a metal used in wires. Conductor.
* Wood: It is a natural organic material, does not conduct electricity well. Insulator.
* Sharpie: Plastic and ink (dry). Generally non-conductive. Insulator.
* Pickle: It contains salt water and acids. Liquids with ions conduct electricity. Conductor.
* Aluminum: It is a metal. Conductor.
* Water: Pure water is an insulator, but tap water usually has minerals that make it a conductor. In school science contexts, "Water" is usually classified as a Conductor.
* Salty water: Salt makes water a very good conductor. Conductor.
* Iron nail: It is a metal. Conductor.

Step 5: Final Selection.
* Copper: Conductor
* Wood: Insulator
* Sharpie: Insulator
* Pickle: Conductor
* Aluminum: Conductor
* Water: Conductor
* Salty water: Conductor
* Iron nail: Conductor

Final Answer:
Sentence 1: A conductor is a material that allows electrons to flow.
Sentence 2: An insulator is a material that does not allow electrons to pass.

Table Selections:
* Copper: Check [Conductor]
* Wood: Check [Insulator]
* Sharpie: Check [Insulator]
* Pickle: Check [Conductor]
* Aluminum: Check [Conductor]
* Water: Check [Conductor]
* Salty water: Check [Conductor]
* Iron nail: Check [Conductor]