Directions: Read the given situations. On the space provided, write PROPER if the practices in the use of simple machine demonstrate safe use and IMPROPER if it is unsafe. 1. Reign puts back the knife in the knife holder after using it. 2. Orly checks the rope of the pulley first before using it. 3. Cholo is playing a pair of scissors. 4. Kurt Liam goes up the stairs carefully to avoid slipping. 5. Avee checks the condition of the ladder before using it. 6. Seanne is fond of getting near the construction site to watch the heavy equipment moving. 7. Kim is running with a knife on his hand. 8. Do not touch moving parts of a machine while they are running. 9. Use the handrail when walking up on the stairs. 10.When carrying sharp and pointed tools like a knife, position the pointed edge downward.​