Educational worksheet on thermal energy transfer methods—conduction, convection, and radiation—with examples and definitions for student learning.

Here's the completed worksheet with correct answers and explanations:

---

Matching:

- Radiation → B. Infrared heat waves like in the Electromagnetic spectrum.
- Convection → C. Heated gas or liquid particles rise.
- Conduction → A. Heat transfer from a heat source through a solid.

*(Note: The worksheet has blanks to fill in — you would write “B” next to Radiation, “C” next to Convection, and “A” next to Conduction.)*

---

Label each example with the appropriate type of heat transfer: radiation, convection, or conduction. Explain why you think so for each example.

---

1. _Radiation_ Heat we feel from the sun.
a. Why?
→ The Sun’s heat reaches Earth through space via electromagnetic waves (specifically infrared radiation). There is no direct contact or moving fluid involved — it travels through the vacuum of space.

---

2. _Conduction_ The heat you feel when you touch a hot stove.
a. Why?
→ Heat transfers directly from the hot solid surface of the stove to your skin through physical contact. This is the definition of conduction — heat moving through solids by direct contact.

---

3. _Convection_ Heat you feel when you put your hands above a fire.
a. Why?
→ The air near the fire heats up, becomes less dense, and rises — carrying heat upward to your hands. This movement of heated air (a fluid) is convection.

---

4. _Conduction_ My spoon is hot after leaving it on the pot that was on the stove.
a. Why?
→ The metal spoon is in direct contact with the hot pot. Heat transfers through the solid material of the spoon from the pot to the handle — this is conduction.

---

5. _Convection_ This is responsible for making macaroni rise and fall in a pot on the stove.
a. Why?
→ As water heats, warmer water rises and cooler water sinks, creating currents that move the macaroni up and down. This circular motion due to heating of a liquid is convection.

---

6. _Radiation_ The heat my snake feels from the heat lamp above him.
a. Why?
→ The heat lamp emits infrared radiation (electromagnetic waves) that travel through the air to warm the snake. No contact or fluid movement is required — just wave energy.

---

7. _Convection_ Transfer of heat by the actual movement of the warmed matter (i.e. gas or liquid).
a. Why?
→ This is the textbook definition of convection — heat transfer caused by the physical movement of heated fluids (liquids or gases), such as rising hot air or circulating water.

---

✔ Summary:

- Radiation = heat via electromagnetic waves (no medium needed).
- Conduction = heat through direct contact in solids.
- Convection = heat via movement of fluids (liquids/gases).

This worksheet helps students distinguish between the three methods using real-world examples and definitions.