Grade 3 Computing Interactive Worksheet & Review Pack (Cambridge)

Computing Final Term Extended Worksheet
Grade 3 - Cambridge Computing Framework Aligned

Q1. Complete the missing letters to form computing terms:

1. S __ __ a r t p h __ n e →

2. P r __ g __ a m →

3. D __ g __ t a l →

4. K __ y b __ a r d →

5. N e __ w __ r k →

Q2. Fill in the blanks using the words given in the box below:

Output  |  Loop  |  Sensor  |  Software  |  Decrypt  |  Database

1. A is a physical device that detects changes in the environment like light or heat.

2. To read a secret locked message, you must it back into plain text.

3. Monitor displays and speakers are examples of devices.

4. Computer apps and games are types of .

5. An organized collection of information stored on a computer is called a .

6. In coding, a is used to repeat a set of actions multiple times.

Q3. Choose the correct option:

1. Which of the following is an input device?

A) Printer B) Microphone C) Speaker

2. What do we call a set of step-by-step instructions that a computer follows?

A) Code B) Hardware C) Cipher

3. When you use block coding (like Scratch), what block is used to make a sprite repeat actions forever?

A) Move 10 steps block B) When green flag clicked block C) Forever loop block

4. Which of these is a rule for staying safe online?

A) Never share your password with friends B) Post your home address publicly C) Talk to strangers online without telling parents

Q4. Unscramble the computing words:

1. M O U P C E T R  → 

2. E S C R N E  → 

3. E S N S O R  → 

4. I T E B S W E  → 

Q5. Write TRUE or FALSE for the following statements:

1. Hardware components can be physically touched.  → 

2. Automatic machines require human power to perform every single step.  → 

3. A digital footprint is the trail of data you leave behind when using the internet.  → 

4. Computers connected together over a distance form a local or global network.  → 

Q6. Write the concept answer:

1. What device converts real world sound patterns into digital files?
Answer:

2. What secret code system mixes up letters to keep a message hidden?
Answer:

3. In programming, what data container name stores values that can change (like scores or timers)?
Answer:

Q7. Match the terms with correct options by matching the letters (A, B, C, D) in the middle boxes:

1. Mouse

A. Outputs text onto paper

2. Printer

B. Input tool to point and click

3. Robot

D. Machine working automatically

4. Sorting

C. Arranging data in alphabetical order

Click to View Answer Key Reference

Q1 Missing Letters: 1. smartphone, 2. program, 3. digital, 4. keyboard, 5. network

Q2 Fill Blanks: 1. sensor, 2. decrypt, 3. output, 4. software, 5. database, 6. loop

Q3 MCQs Selection: 1. B (Microphone), 2. A (Code), 3. C (Forever loop block), 4. A (Never share your password)

Q4 Word Unscramble: 1. computer, 2. screen, 3. sensor, 4. website

Q5 True / False: 1. TRUE, 2. FALSE, 3. TRUE, 4. TRUE

Q6 Concept Answer: 1. microphone, 2. cipher, 3. variable

Q7 Matching Rows: 1 → B, 2 → A, 3 → D, 4 → C