Class treaty

Aim: To learn about  the expected behavior in a science laboratory.

Our R9 Class Treaty

1.   Bags under our desks 
2.  No food or drink  
3.   No running
4.   Look don't touch experiments
5.  Report any breakages or spills
6. Don't eat ,drink or smell any chemicals 

Safety in a laboratory.

teacher   shoes   practical  teacher laboratory   ask  sniff teacher  breakages 

1.   Follow the instructions given to you by the _____Teacher_____ .
2.   You must not enter the laboratory without your __Teacher______.
3.   Report all ____Breakages and spills________ to your teacher.
4.   You must never eat or drink in a _____Science lab_______ .
5.   __Shoes_____ must be worn at all times.
6.   If you spill something you should tell your __Teacher_______ immediately.
7.  You should wash your hands after every __Practical_____ activity.
8. You should know what you are doing. If in doubt __Ask___ your teacher.
9. Never taste or ___Sniff_ chemicals.

In your group, discuss how the following scenarios could be dangerous.

1. Not putting your bag under your desk.
2. Running around in the laboratory.
3. Not wearing shoes in a laboratory.
4. Shaking a test tube with your thumb over its mouth?

How do we work in this laboratory?

1. Beginning and End of class: Lining up, Entry, Seating, 
2. Equipment tray: equipment list and details.

• Test tube - This is used  for experiments using liquids.They have a bung that can be placed in the top. Test tubes sit in a test tube rack.

• Measuring Cylinder - This is used to measure liquids for experiments. The liquids will be poured into a beaker or test tube once measured out.

• Glass Stirring rod - This is a 20cm glass rod used to stir and mix any liquids together.

• Spatula - This is for holding very small amounts of chemical powders.

• Test tube tongs - These are used to hold a hot test tube after an experiment.

• Conical Flask - This is used for experiments with liquid up to 150 ml. The flask has a rubber bung for the top and the glass is heat proof.

• Funnel - used to channel liquids into a smaller container.