"Charge It!" worksheet for identifying electrical charges on balloons.

Problem Analysis:

The worksheet is about determining the electrical charge of balloons based on the distribution of positive (+) and negative (−) charges. The task involves identifying whether a balloon has a positive electrical charge, negative electrical charge, or is electrically neutral. Additionally, it asks to determine whether two balloons will attract or repel each other based on their charges.

Key Concepts:

1. Electric Charge:
- A balloon is positively charged if it has more positive charges (+) than negative charges (−).
- A balloon is negatively charged if it has more negative charges (−) than positive charges (+).
- A balloon is electrically neutral if it has an equal number of positive and negative charges.

2. Attraction and Repulsion:
- Opposite charges attract: Positive (+) attracts Negative (−).
- Like charges repel: Positive (+) repels Positive (+), and Negative (−) repels Negative (−).

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Solution:

#### Part 1: Determine the Electrical Charge of Each Balloon
We need to count the number of positive (+) and negative (−) charges in each balloon and classify them accordingly.

##### Balloon A:
- Positive charges (+): 5
- Negative charges (−): 4
- Since there are more positive charges than negative charges, Balloon A has a positive electrical charge.

##### Balloon B:
- Positive charges (+): 6
- Negative charges (−): 6
- Since the number of positive and negative charges is equal, Balloon B is electrically neutral.

##### Balloon C:
- Positive charges (+): 5
- Negative charges (−): 4
- Since there are more positive charges than negative charges, Balloon C has a positive electrical charge.

Answers for Part 1:
- A) positive electrical charge
- B) electrically neutral
- C) positive electrical charge

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#### Part 2: Determine the Electrical Charge and Interaction Between Balloons
For each pair of balloons, we first determine their charges and then decide whether they will attract or repel.

##### Pair 1:
- Balloon 1:
- Positive charges (+): 3
- Negative charges (−): 4
- Since there are more negative charges, this balloon has a negative electrical charge.

- Balloon 2:
- Positive charges (+): 3
- Negative charges (−): 4
- Since there are more negative charges, this balloon also has a negative electrical charge.

- Interaction: Both balloons have a negative charge. Like charges repel.
- Circle: repel

##### Pair 2:
- Balloon 1:
- Positive charges (+): 3
- Negative charges (−): 3
- Since the number of positive and negative charges is equal, this balloon is electrically neutral.

- Balloon 2:
- Positive charges (+): 4
- Negative charges (−): 3
- Since there are more positive charges, this balloon has a positive electrical charge.

- Interaction: A neutral object does not have a net charge and will neither attract nor repel another charged object. However, since the question asks to circle "attract" or "repel," we can infer that the interaction is negligible or neutral.
- Circle: neither attract nor repel (but technically, we should circle repel as per the given options)

##### Pair 3:
- Balloon 1:
- Positive charges (+): 3
- Negative charges (−): 3
- Since the number of positive and negative charges is equal, this balloon is electrically neutral.

- Balloon 2:
- Positive charges (+): 3
- Negative charges (−): 3
- Since the number of positive and negative charges is equal, this balloon is also electrically neutral.

- Interaction: Both balloons are electrically neutral. Neutral objects do not interact with each other through electrostatic forces.
- Circle: neither attract nor repel (but technically, we should circle neither as per the given options)

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Final Answers:

#### Part 1:
- A) positive electrical charge
- B) electrically neutral
- C) positive electrical charge

#### Part 2:
1. Balloon 1: negative electrical charge
- Balloon 2: negative electrical charge
- Circle: repel

2. Balloon 1: electrically neutral
- Balloon 2: positive electrical charge
- Circle: repel

3. Balloon 1: electrically neutral
- Balloon 2: electrically neutral
- Circle: neither attract nor repel

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Boxed Final Answer:

\[
\boxed{
\text{A) positive electrical charge, B) electrically neutral, C) positive electrical charge}
}
\]
\[
\boxed{
\text{1. repel, 2. repel, 3. neither attract nor repel}
}
\]