Mr. Nettles

Biology I: Review and Lab Procedures

Warm-Up1. Define Osmosis.

2. How does it differ from diffusion?

3. If a cell is 20% salt solution, and it’s placed in a glass beaker with 50% salt solution, what would happen to the cell?

Agenda – Mon., Sept. 19, 2011Warm-UpReview Test/Make-Up Lab Safety ProceduresWrap-UpWorksheet on Lab Safety/Finish

Missing Work

Top 10 Lab Safety Rules1. Prepare for Lab.

Study the procedure. Read through the lab.

Ask questions if you’re confused.

Top 10 Lab Safety Rules2. Follow Directions.

Don’t skip steps!!

Ask questions if you’re confused.

Top 10 Lab Safety Rules

3. Dress for the Lab.

Always wear goggles or any other required safety gear.

Wear clothing that covers your skin Long pants and long sleeve shirts Hair should be tied back or wear a

hairnet.

Wear tennis shoes or any other type of closed-toe shoe.

Top 10 Lab Safety Rules4. Always slant the mouth of test

tubes away from yourself and others.

This prevents spills!!

This prevents accidental exposure to chemicals.

Top 10 Lab Safety Rules5. Never eat or drink in the lab.

Never inhale (breathe in) chemicals.

Never taste anything in the lab.

Top 10 Lab Safety Rules6. Chemicals can burn you, so

always wash spills immediately and call your instructor.

If a spill occurs, find the nearest source of water and wash thoroughly.

Don’t expose any other parts of your body to the chemical!

Top 10 Lab Safety Rules7. Be careful with fire. If you

burn yourself apply cold water.

Never expose hair to fire in the lab, so again hair should be tied back.

Top 10 Lab Safety Rules8. If you are on fire, Do Not Run,

it will make flames bigger

Remember: Stop, Drop, and Roll

Top 10 Lab Safety Rules9. Clean up at the end of lab.

Chemicals should be exposed of in the waste bucket.

Lab areas should be sanitized and safety gear should be put away.

Top 10 Lab Safety Rules10.Report ALL accidents or

injuries to your instructor.

No Horse-Playing!!

Goofing off is the easiest way to cause accidents and injuries in the lab!!

Wrap-Up1. True or False? If you are on fire,

you should run until the fire is put out.

1. How should you Prepare for Lab?

2. What is the easiest way that accidents occur during lab?