How do you drop and roll?

The principles of STOP, DROP and ROLL are simple:

1. Stop, do not run, if your clothes catch on fire.
2. Drop to the floor in a prone position.
3. Cover your face with your hands to protect it from the flames.
4. Roll over and over to smother the fire. Don’t stop until the flames have been extinguished.

What should you do when your clothes catch fire?

If you clothes catch fire:

1. STOP immediately where you are.
2. DROP to the ground.
3. ROLL over and over and back and forth, covering your face and mouth with your hands (this will prevent flames from burning your face and smoke from entering your lungs).
4. COOL the burn with cool water for 10-15 minutes.
5. CALL a grown-up for help.

What should you do if someone else clothing catches fire?

If someone else catches on fire, smother the flames by grabbing a blanket or rug and wrapping them up in it. If a fire extinguisher is available, use it to extinguish the flames. That could save them from serious burns or even death.

How do you put someone out on fire?

How to put out a fire on someone? The basic principle when someone catches fire is “stop, drop and roll”. It helps them to extinguish the flames on themselves. If you are near someone on fire and they stop, drop and roll – you can then smother the flames in a wet blanket or a coat.

What will you do if a person catches fire?

STAY where you are—moving or running feeds air to the flames and worsens the fire. DROP to the floor—if you stand up, the fire can burn your face. Fold your arms high on your chest to protect your face. ROLL slowly on the floor or ground, in a rug or blanket if you can.

Should you throw water on someone on fire?

Put the fire out by pouring water slowly onto the flames. Do not throw or dump the water. This can cause a sudden swell in smoke which can be dangerous. Keep pouring the water until the hissing sound of the embers dies out entirely.

Why should you never perform unauthorized experiments?

2. Performing unauthorized experiments or any experiment at unauthorized times is forbidden. Unanticipated results to an unauthorized or altered experiment can be quite hazardous. Materials should never be taken from the laboratory.

Why is it important to let your teacher know if you cut burn or injure yourself when performing an experiment?

An accidental cut could cause infection or poisoning. Communication with your teacher in the laboratory can also help prevent accidents or injuries to yourself and others. For example, you should always tell your teacher if you spill something or are cut or injured when performing an experiment.

Why should you tell your teacher if any equipment or glassware is broken?

You should also alert your teacher if any equipment or glassware is broken. Your teacher can provide Material Safety Data Sheets (MSDS), which contain safety information about chemicals you may come in contact with in the laboratory. Do not dump chemicals into the sink or trash.

When working with a Bunsen burner What precautions should be taken?

Procedure

• Place the Bunsen burner away from any overhead shelving, equipment or light fixtures by at least 12 inches.
• Remove all papers, notebooks, combustible materials and excess chemicals from the area.
• Tie-back any long hair, dangling jewelry, or loose clothing.

Which direction should the striker face as you are trying to light the Bunsen burner?

Step 4: Light the Bunsen burner. Turn on the gas outlet by turning it to face the same direction as the gas tube. (See the picture on P. 2) Immediately after turning on the gas, holding the striker over the top of the Bunsen burner FACING AWAY FROM YOUR BODY and use your thumb to strike it so that a flame ignites.

What should you do if your Bunsen burner does not light after a few tries with the striker?

If the burner doesn’t light after several strikes, turn the gas off at the source. Verify that you are generating sparks when striking the striker, and check that the barrel is all the way down and the needle valve is open by the specified amount. If these check out, the problem may be insufficient gas flow.

How do you recover solutes from a solution?

Solutions are homogeneous mixtures in which the solute is completely and evenly dissolved throughout. Therefore, filtration can not be used to separate the solute from the solvent. The solutes dissolved in a solution can be recovered by evaporating the solvent.