Pressure Washing a Wall Worksheet for 11-Year-Olds: Science and Practical Skills

Instructions

1. Imagine you are helping an adult clean a dirty wall using a pressure washer. Draw a picture of the wall you want to clean and label any dirty areas. Describe the wall in the space below.

2. Why is it important to wear safety goggles while pressure washing a wall? Write your answer here.

3. What do you think are some safety rules to remember when using a pressure washer? Check the correct answers (there may be more than one).
___ Always wear safety goggles ___ Keep the nozzle close to people ___ Keep the nozzle close to windows ___ Keep the hose away from water 4. Choose one reason from the list below and explain why you would wash a wall. Circle your choice.
A) To prepare the wall for painting B) Because the wall is dirty C) To remove old graffiti D) To remove moss or mildew Explain why you chose that reason.

5. What tools do you need to pressure wash a wall? Check the correct answers.
___ Pressure washer ___ Garden hose ___ Gloves ___ Safety goggles ___ Spray tips