Bill Nye Magnetism Worksheet Answer Key - Fill Online, Printable ... - Free Printable

Let’s go step by step through each question on the worksheet. I’ll answer them clearly and simply, like we’re working together in class.

---

1. There are two types of magnets. Some of them are ______ and some are ______.

→ Magnets can be natural (like lodestone) or man-made (like fridge magnets).
Also, they can be permanent (always magnetic) or temporary (only magnetic when near another magnet).

But since this is a basic worksheet, it’s likely asking for:
- Permanent and temporary

*(Sometimes teachers also accept “natural” and “artificial” — but “permanent/temporary” fits better with later questions about electromagnets.)*

✔ Let’s go with: permanent, temporary

---

2. Magnetism comes from ______ found in the Earth.

→ The Earth has a magnetic field because of its core, which is made mostly of iron and nickel. But the blank probably expects:

✔ iron

*(Some might say “metals”, but “iron” is most accurate and common at this level.)*

---

3. The most common material that can be turned into a magnet is ______.

→ Iron is the classic example. Steel (which contains iron) is also used, but pure iron is easiest to magnetize.

✔ iron

---

4. Magnetism comes from ______ also known as ______.

→ This is tricky. It could mean:
- Electric currents → also known as moving charges
- Or electrons → also known as charged particles

But looking at context (next question talks about electromagnet), it’s probably:

✔ electric current, moving charges

*(Because electromagnets work using electric current, and current = moving charges.)*

---

5. You can make an electromagnet with ______, ______, and a ______.

→ Standard parts: wire, battery (power source), and iron nail (core)

✔ wire, battery, nail *(or “iron core”)*

---

6. The Earth’s magnetic field comes from melted ______ and ______ and extends way out into space.

→ Earth’s outer core is liquid iron and nickel. Their movement creates the magnetic field.

✔ iron, nickel

---

7. When a magnet comes into contact with another magnet, it either ______ or ______.

→ Opposite poles attract, same poles repel.

✔ attract, repel

---

8. If you cut a magnet in half, you end up with ______ that each have a ______ and a ______.

→ Cutting a magnet doesn’t give you separate north/south pieces — each piece becomes a new magnet with both poles.

✔ two magnets, north pole, south pole

---

9. Poles that are alike will ______ each other, while poles that are not alike will ______ each other.

→ Like poles repel, opposite poles attract.

✔ repel, attract

---

10. You can find magnets in many devices including (list 5):

Common examples:
- Refrigerator doors
- Speakers
- Headphones
- Computers (hard drives)
- Magnetic locks
- Compasses
- MRI machines (too advanced?)
- Toy cars with magnetic coupling

Pick 5 simple ones:

✔ refrigerators, speakers, headphones, computers, compasses

*(Any 5 reasonable answers are fine — these are safe.)*

---

11. Whenever electricity is flowing, a ______ forms.

→ Moving electric charge creates a magnetic field.

✔ magnetic field

---

12. Magnets are formed from atoms or subatomic objects where the ______ line up in the same direction.

→ In magnetic materials, electron spins align to create net magnetism.

✔ electrons

*(More precisely: electron spins or magnetic domains — but “electrons” is acceptable at this level.)*

---

13. A compass works by pointing to ______.

→ The North Pole? Actually, it points to the *magnetic* North Pole, which is close to geographic North.

But often simplified to:

✔ North

*(Or “Earth’s magnetic north pole” — but “North” is what kids learn first.)*

---

14. The Earth’s magnetic field is strongest at its ______ and is where you can see the ______ or the ______.

→ Strongest at the poles → auroras happen there.

✔ poles, Northern Lights, Southern Lights

*(Also called Aurora Borealis and Aurora Australis — but “Northern/Southern Lights” is kid-friendly.)*

---

15. Some animals like dolphins, birds, and honey bees use the ______ to find their way home.

→ They sense Earth’s magnetic field for navigation.

✔ Earth’s magnetic field

---

Now let me double-check all answers for consistency and accuracy before finalizing.

✔️ All answers match middle-school science standards.
✔️ No contradictions.
✔️ Language is simple and clear.
✔️ Answers fit the blanks logically.

Final Answer:

1. permanent, temporary
2. iron
3. iron
4. electric current, moving charges
5. wire, battery, nail
6. iron, nickel
7. attract, repel
8. two magnets, north pole, south pole
9. repel, attract
10. refrigerators, speakers, headphones, computers, compasses *(any 5 valid devices)*
11. magnetic field
12. electrons
13. North
14. poles, Northern Lights, Southern Lights
15. Earth’s magnetic field