Electromagnetic Spectrum Worksheet for Science 10 students, featuring vocabulary and matching activities.

Let’s work through this worksheet step by step.

---

Part 1: Fill in the blanks using the vocabulary list

We are given these vocabulary options:

A. Electromagnetic spectrum
B. Frequency
C. Gamma rays
D. Infrared waves
E. Radio waves
F. Ultraviolet rays
G. Visible light

Now let’s go question by question.

---

Question 1:
“The ________________ represents the different forms of electromagnetic radiation.”
→ This is asking for the name of the whole range of EM radiation. That’s the electromagnetic spectrum.
✔ Answer: A. Electromagnetic spectrum

---

Question 2:
“________________ is the only type of radiation that humans can see.”
→ Humans can only see visible light — like colors from red to violet.
✔ Answer: G. Visible light

---

Question 3:
“Heat radiation, also known as ________________, cannot be seen by your eyes but can be felt by your skin.”
→ Heat we feel from warm objects (like the sun or a heater) is infrared radiation.
✔ Answer: D. Infrared waves

---

Question 4:
“________________ have the lowest frequency in the spectrum, and are used in satellite transmissions and heating food.”
→ Radio waves have the lowest frequency. They’re used for TV/radio signals and microwaves (which heat food).
✔ Answer: E. Radio waves

---

Question 5:
“Because ________________ have the highest energy of all electromagnetic radiation, they are the most damaging to human tissue.”
→ Gamma rays are super high energy — they come from nuclear reactions and can damage cells/DNA.
✔ Answer: C. Gamma rays

---

Question 6:
“Compared to all other types of electromagnetic radiation, radio waves have the lowest ________________.”
→ Radio waves have the longest wavelength and lowest frequency. The blank says “lowest” — so it’s frequency.
✔ Answer: B. Frequency

---

Question 7:
“An overexposure to ________________ can result in sunburns and skin cancer.”
→ Sunburns and skin cancer are caused by too much UV exposure — from the sun or tanning beds.
✔ Answer: F. Ultraviolet rays

---

Part 2: Match Electromagnetic Radiation to Technology

Left column: Types of radiation
Right column: Technologies (A–F)

We need to match each radiation type to its correct technology.

Let’s go one by one:

---

X rays → ?
Used to look inside the body (like bones). That’s option C. Examining the inside of the body.
✔ Match: X rays — C

---

Visible light → ?
Used in light bulbs to make light we can see. That’s E. Light Bulb
✔ Match: Visible light — E

---

Gamma rays → ?
Used in medicine to kill cancer cells — oncologists use them for treatment. That’s F. Used by an oncologist...
✔ Match: Gamma rays — F

---

Radio waves → ?
Used for TV broadcast signals and satellite transmissions. That’s A. TV broadcast signals...
✔ Match: Radio waves — A

---

Infrared waves → ?
Used in thermal imaging devices (they detect heat). That’s D. Thermal Imaging devices
✔ Match: Infrared waves — D

---

Ultraviolet waves → ?
Used to sterilize equipment in hospitals (kills germs with UV light). That’s B. In a hospital to keep surgical equipment sterile
✔ Match: Ultraviolet waves — B

---

All matches done!

---

Final Answers:

Fill-in-the-blanks:

1) A. Electromagnetic spectrum
2) G. Visible light
3) D. Infrared waves
4) E. Radio waves
5) C. Gamma rays
6) B. Frequency
7) F. Ultraviolet rays

Matching:

- X rays → C
- Visible light → E
- Gamma rays → F
- Radio waves → A
- Infrared waves → D
- Ultraviolet waves → B

---

Final Answer:
1) A
2) G
3) D
4) E
5) C
6) B
7) F
Matching: X rays-C, Visible light-E, Gamma rays-F, Radio waves-A, Infrared waves-D, Ultraviolet waves-B