📱 Part 1: Understanding Data Storage Units

1. What does one byte represent in digital storage?

One letter or character

One thousand letters

One million letters

One picture

2. How many bytes are in 1 kilobyte (KB)?

100 bytes

1000 bytes

10,000 bytes

1,000,000 bytes

3. How many kilobytes are in 1 megabyte (MB)?

100 KB

1000 KB

10,000 KB

1,000,000 KB

4. Which devices commonly show data storage in KB or MB? (Check all that apply)

Mobile phones

USB memory sticks

Digital cameras

Calculators

Computer files

🔢 Part 2: Converting Data Storage Units

5. Convert 3000 bytes to kilobytes:

3000 bytes = _________ KB

6. Convert 7 KB to bytes:

7 KB = _________ bytes

7. Convert 2 MB to kilobytes:

2 MB = _________ KB

8. Extension Challenge: Convert 5500 bytes to KB and then to the nearest hundredth of an MB:

5500 bytes = _________ KB = _________ MB

💭 Part 3: Real-World Applications

9. Explain why we use metric prefixes like kilo- and mega- instead of writing out all the zeros for large numbers of bytes:

10. Look at this scenario: Sarah wants to save a 1.5 MB photo on a USB stick that has 800 KB of free space left. Will the photo fit? Explain your answer with calculations:

11. Extension Activity: Research and list three examples of file sizes you might find on a computer or mobile device. Include the unit (bytes, KB, or MB) for each: