Static electricity worksheet for Grade 3 students, explaining concepts like charges, atoms, and electron movement with interactive exercises and illustrations.
A Grade 3 science worksheet on static electricity from K5 Learning, featuring fill-in-the-blank questions, diagrams of atoms, and an illustration of a child holding a balloon.
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Show Answer Key & Explanations
Step-by-step solution for: Static Electricity .. Interactive worksheet | TopWorksheets
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Show Answer Key & Explanations
Step-by-step solution for: Static Electricity .. Interactive worksheet | TopWorksheets
Let's solve this Grade 3 Science Worksheet on Static Electricity step by step. We'll fill in the blanks using the provided word bank:
- positive
- negative
- attract
- force
- atoms
- repel
- electrons
---
> Static electricity is an invisible _________. It happens when tiny particles in _________ are attracted to or repel each other.
✔ Answer:
- Static electricity is an invisible force.
- It happens when tiny particles in atoms are attracted to or repel each other.
🔹 *Explanation:* Static electricity is a type of electric charge that builds up on objects, and it’s caused by the movement of electrons within atoms.
---
> Protons have a _________ charge. Electrons have a _________ charge. Protons _________ or move away from other protons. Electrons repel or move away from other _________.
✔ Answer:
- Protons have a positive charge.
- Electrons have a negative charge.
- Protons repel or move away from other protons.
- Electrons repel or move away from other electrons.
🔹 *Explanation:* Like charges repel — so positive charges (protons) push each other away, and negative charges (electrons) also push each other away.
---
> What happens between a proton and an electron? They ________, or move toward each other.
✔ Answer:
- They attract, or move toward each other.
🔹 *Explanation:* Opposite charges attract — so a positive proton and a negative electron are pulled toward each other.
---
> *(Image shows a girl holding a blue balloon, and her hair is standing up toward the balloon.)*
✔ Answer:
The balloon has a static electric charge. When the balloon is rubbed (probably on hair or clothes), it gains extra electrons and becomes negatively charged. The negatively charged balloon repels electrons in the girl’s hair, making the hair positively charged. Since opposite charges attract, the positively charged hair is pulled toward the negatively charged balloon. This causes the hair to stand up and stick to the balloon.
---
> If the hair has a negative charge, what does the balloon have?
✔ Answer:
The balloon must have a positive charge.
🔹 *Explanation:* If the hair is negatively charged and it is being attracted to the balloon, then the balloon must be positively charged because opposite charges attract. However, in most real-life balloon experiments, the balloon becomes negatively charged (gains electrons), and the hair becomes positively charged (loses electrons). So if the hair is negatively charged, then the balloon would need to be positively charged to attract it.
But wait — let's double-check the image and logic.
In typical balloon experiments:
- Rubbing a balloon on hair transfers electrons from hair to balloon.
- Balloon becomes negative.
- Hair becomes positive.
- Positive hair is attracted to negative balloon → hair stands up.
So if the hair has a negative charge, that means it gained electrons — which would mean the balloon lost electrons and became positive.
✔ Therefore, the balloon has a positive charge.
---
#### Fill-in-the-blanks:
1. Static electricity is an invisible force. It happens when tiny particles in atoms are attracted to or repel each other.
2. Protons have a positive charge. Electrons have a negative charge. Protons repel or move away from other protons. Electrons repel or move away from other electrons.
3. They attract, or move toward each other.
#### Short Answer:
What is happening here?
When the balloon is rubbed, it gains a negative charge. This repels electrons in the hair, leaving the hair positively charged. The opposite charges attract, so the hair stands up and moves toward the balloon.
If the hair has a negative charge, what does the balloon have?
The balloon has a positive charge.
---
✔ Note: This assumes the scenario where the hair is negatively charged (which is unusual in typical balloon experiments). But based on the question, we use the rule: opposite charges attract. So if hair is negative, balloon must be positive.
---
Let me know if you'd like this formatted as a printable answer key!
Word Bank:
- positive
- negative
- attract
- force
- atoms
- repel
- electrons
---
1. Fill in the blanks:
> Static electricity is an invisible _________. It happens when tiny particles in _________ are attracted to or repel each other.
✔ Answer:
- Static electricity is an invisible force.
- It happens when tiny particles in atoms are attracted to or repel each other.
🔹 *Explanation:* Static electricity is a type of electric charge that builds up on objects, and it’s caused by the movement of electrons within atoms.
---
> Protons have a _________ charge. Electrons have a _________ charge. Protons _________ or move away from other protons. Electrons repel or move away from other _________.
✔ Answer:
- Protons have a positive charge.
- Electrons have a negative charge.
- Protons repel or move away from other protons.
- Electrons repel or move away from other electrons.
🔹 *Explanation:* Like charges repel — so positive charges (protons) push each other away, and negative charges (electrons) also push each other away.
---
> What happens between a proton and an electron? They ________, or move toward each other.
✔ Answer:
- They attract, or move toward each other.
🔹 *Explanation:* Opposite charges attract — so a positive proton and a negative electron are pulled toward each other.
---
2. What is happening here?
> *(Image shows a girl holding a blue balloon, and her hair is standing up toward the balloon.)*
✔ Answer:
The balloon has a static electric charge. When the balloon is rubbed (probably on hair or clothes), it gains extra electrons and becomes negatively charged. The negatively charged balloon repels electrons in the girl’s hair, making the hair positively charged. Since opposite charges attract, the positively charged hair is pulled toward the negatively charged balloon. This causes the hair to stand up and stick to the balloon.
---
> If the hair has a negative charge, what does the balloon have?
✔ Answer:
The balloon must have a positive charge.
🔹 *Explanation:* If the hair is negatively charged and it is being attracted to the balloon, then the balloon must be positively charged because opposite charges attract. However, in most real-life balloon experiments, the balloon becomes negatively charged (gains electrons), and the hair becomes positively charged (loses electrons). So if the hair is negatively charged, then the balloon would need to be positively charged to attract it.
But wait — let's double-check the image and logic.
In typical balloon experiments:
- Rubbing a balloon on hair transfers electrons from hair to balloon.
- Balloon becomes negative.
- Hair becomes positive.
- Positive hair is attracted to negative balloon → hair stands up.
So if the hair has a negative charge, that means it gained electrons — which would mean the balloon lost electrons and became positive.
✔ Therefore, the balloon has a positive charge.
---
✔ Final Answers:
#### Fill-in-the-blanks:
1. Static electricity is an invisible force. It happens when tiny particles in atoms are attracted to or repel each other.
2. Protons have a positive charge. Electrons have a negative charge. Protons repel or move away from other protons. Electrons repel or move away from other electrons.
3. They attract, or move toward each other.
#### Short Answer:
What is happening here?
When the balloon is rubbed, it gains a negative charge. This repels electrons in the hair, leaving the hair positively charged. The opposite charges attract, so the hair stands up and moves toward the balloon.
If the hair has a negative charge, what does the balloon have?
The balloon has a positive charge.
---
✔ Note: This assumes the scenario where the hair is negatively charged (which is unusual in typical balloon experiments). But based on the question, we use the rule: opposite charges attract. So if hair is negative, balloon must be positive.
---
Let me know if you'd like this formatted as a printable answer key!
Parent Tip: Review the logic above to help your child master the concept of what is electricity worksheet answers.
