Grade 3 STEM Worksheet: Robot Parts and Coding Patterns Activities

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Instructions

Read each section carefully and answer all the questions. Good luck!

Part 1: Match the Robot Part

Draw a line from the Robot Part in Column A to its job in Column B.

Column A: Robot Part

  1. CPU (Brain)
  2. Sensor
  3. Power Source
  4. Actuator (Motor)
  5. Body

Column B: Job

A. Moves a part of the robot, like an arm or wheel.

B. Holds all the parts of the robot together.

C. "Thinks" and follows the code's instructions.

D. Gives the robot energy to work, like a battery.

E. Gathers information from the world, like seeing or feeling.

Part 2: What's the Pattern?

A pattern is a set of instructions that repeats. Look at the robot's list of actions below and write down the repeating pattern on the line.

6. Actions: Forward, Stop, Forward, Stop, Forward, Stop

Pattern: __________________________________________________


7. Actions: Turn Left, Beep, Turn Left, Beep, Turn Left, Beep

Pattern: __________________________________________________


8. Actions: Light On, Light Off, Light On, Light Off

Pattern: __________________________________________________


9. Actions: Step, Step, Jump, Step, Step, Jump

Pattern: __________________________________________________


10. Actions: Arm Up, Wave, Arm Down, Arm Up, Wave, Arm Down

Pattern: __________________________________________________

Part 3: Fill in the Blanks

Use the words from the word bank to complete each sentence. You will use each word only once.

Word Bank:
Code     Loop     Algorithm     Bug     Sequence

11. A set of step-by-step instructions for completing a task is called an ______________________.


12. A __________ is the specific order that instructions are followed by the robot.


13. When an action or a set of actions repeats, it is called a ______________________.


14. An error or mistake in a program that stops the robot from working correctly is called a ______________________.


15. The language written for a robot to tell it what to do is called ______________________.




Answer Key

Part 1: Match the Robot Part

  1. C. "Thinks" and follows the code's instructions.
  2. E. Gathers information from the world, like seeing or feeling.
  3. D. Gives the robot energy to work, like a battery.
  4. A. Moves a part of the robot, like an arm or wheel.
  5. B. Holds all the parts of the robot together.

Part 2: What's the Pattern?

  1. Forward, Stop
  2. Turn Left, Beep
  3. Light On, Light Off
  4. Step, Step, Jump
  5. Arm Up, Wave, Arm Down

Part 3: Fill in the Blanks

  1. Algorithm
  2. Sequence
  3. Loop
  4. Bug
  5. Code
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