1. Safety, Recording and Presenting

2. Science safety rules! Aim: Complete safety labels Safety
Sponge bob worksheet

4. Hazard Symbols The previous task looked at the old European symbols.
We now use ones which are based on the International symbols.
This is known as the UNITED NATIONS GLOBALLY HARMONISED SYSTEM or GHS

5. Hazard Symbols
There are no single words used to describe these symbols but there will be a hazard statement on the packaging alongside the symbol.

8. Safety in the Laboratory

9. Hazard labels Sticker of hazard label What it means
Corrosive chemicals destroy other substances.
Flammable chemicals can cause fire if near a naked flame.
Irritant chemicals can cause inflammation to skin and eyes.
Toxic chemicals can cause serious health risk.
Explosive chemicals can react violently to their surroundings.
Biohazard: can cause infection or disease
Oxidising chemicals give off oxygen thus promoting fire
Harmful chemicals can cause limited health risk.

10. Science safety rules! Aim: Safety Rules Class rules
Sponge bob worksheet
Light a bunsen
Design an experiment!

11. Safety Rules
You must not ________ the room until your ______ tells you
Be sure you know where the nearest _______ exit is
Put your coat and bag where they will ____ cause an ______

12. Before doing an _______ make sure you _____ all the instructions including the _______ precautions.
Carefully examine the apparatus ______ you use it. Glass should have no ______ edges or cracks. Do not use any ________ apparatus but tell your teacher about it.

13. When doing an experiment be careful and take your _______
Report any _______ or accident at once to your teacher.

14. After you have finished an experiment:-
_____ away apparatus
b) Take care of any ________ material (ask if you are not sure)
c) _______ and dry the bench.

15. One pupil come out face the audience. Don’t look at pic on board
One pupil come out face the audience. Don’t look at pic on board..class describe it..see if they can guess!

24. NEVER PUT ANY CHEMICALS NEAR YOUR MOUTH
NEVER PUT ANY CHEMICALS NEAR YOUR MOUTH. ALWAYS MAKE SURE YOU WASH YOUR HANDS AFTER WORKING WITH CHEMICALS
ALWAYS WEAR ________ ________ WHEN DOING AN EXPERIMENT

26. SpongeBob, Patrick, and Gary were thrilled when Mr
SpongeBob, Patrick, and Gary were thrilled when Mr. Krabbs gave their teacher a chemistry set! Mr. Krabbs warned them to be careful and reminded them to follow the safety rules they had learned in science class. The teacher passed out the materials and provided each person with an experiment book. SpongeBob and Gary flipped through the book and decided to test the properties of a mystery substance. Since the teacher did not tell them to wear the safety goggles, they left them on the table1. SpongeBob lit the Bunsen burner, then reached across the flame2 to get a test tube from Gary.

27. In the process, he knocked over a bottle of the mystery substance and a little bit splashed on Gary3. SpongeBob poured some of the substance into a test tube and began to heat it. When it started to bubble he looked into the test tube4 to see what was happening and pointed it towards Gary5 so he could see. Gary thought it smelled weird so he took a deep whiff of it6. He didn’t think it smelled poisonous and tasted a little bit of the substance7. They were worried about running out of time, so they left the test tube and materials on the table8 and moved to a different station to try another experiment.

28. Patrick didn’t want to waste any time reading the directions9, so he put on some safety goggles and picked a couple different substances. He tested them with vinegar (a weak acid) to see what would happen even though he didn’t have permission to experiment on his own10. He noticed that one of the substances did not do anything, but the other one fizzed. He also mixed two substances together to see what would happen11, but didn’t notice anything. He saw SpongeBob and Gary heating something in a test tube and decided to do that test.

29. He ran over to that station12 and knocked over a couple bottles that SpongeBob had left open13. After cleaning up the spills, he read the directions and found the materials he needed. The only test tube he could find had a small crack in it, but he decided to use it anyway14. He lit the Bunsen burner and used tongs to hold the test tube over the flame. He forgot to move his notebook away from the flame15 and almost caught it on fire.

30. Before they could do another experiment, the bell rang and they rushed to put everything away. Since they didn’t have much time, Patrick didn’t clean out his test tube before putting it in the cabinet16. SpongeBob noticed that he had a small cut on his finger, but decided he didn’t have time to tell the teacher about it17. Since they were late, they skipped washing their hands18 and hurried to the next class.

31. Aim: safely use a bunsen burner and to
To find out how to
safely use a bunsen burner
and to
design an experiment to test the hottest flame in a bunsen

35. Thermometer

37. Experiment
Aim
To find out which bunsen flame is the hottest (the yellow or the blue).

38. What do we need?
How do we keep it fair?

40. What does boiling water look like?

41. Apparatus

42. Results
Type of Flame
Time taken to Boil (secs)
Blue
Yellow

43. Conclusion

44. To learn how to accurately measure volume and mass
AIM
To learn how to accurately measure volume and mass

45. Measuring Cylinder

46. Electronic Balance

47. How can we record the results?

48. Apparatus

49. Method

50. Volume
Object
Volume
(ml)

51. Mass
Object
Mass
(g)

52. Conclusion

53. Using Science apparatus to make tea
Boil 100 ml of water
Let it cool then add tea leaves
Then filter using filter paper and a filter funnel