1. SCIENCE SKILLS

2. The Fire Triangle Fires need three components :
fuel, oxygen, and heat. Removing or
disrupting one of the points of the
fire triangle will prevent or extinguish
a fire.
Reducing the amount of fuel available to support a fire is important. For most fires, it is not the flammable liquid that is burning, but rather vapor from the liquid that mixes with air and burns. Removing the liquid, however, will quickly reduce the amount of vapor.
Smothering the fire will reduce the amount of oxygen and extinguish the fire.

3. Fire Extinguisher Technique
P is for Pull
A is for Aim
S is for Squeeze
S is for Sweep

4. What are Science Skills?
Science skills are used to gather, organize, and communicate information. They include: 1. Observing - Look at what’s going on 2. Researching - Check to see what’s already known

5. The
rabbit
in the
the hat.

6. What are Science Skills?
3. Measuring - Using a
device to give
measurable, repeatable
data.
4. Inferring - “What do I
understand from this
so far?”

7. 5. Classifying - Putting stuff into groups by some characteristic 6
5. Classifying - Putting stuff into groups by some characteristic 6. Organizing - Making logical groups 7. Predicting - Tell/Think what will happen next

8. 8. Hypothesizing –
If …. Then….
9. Modeling - A slice of the real
world; not all of it
10. Analyzing - “What does this
mean?”
11. Communicating - Passing the information you found on to
others (report/table/graph) etc.)

9. Laboratory Instructions:
READ and follow directions!
93% of high school lab accidents happen because someone didn’t follow directions!

10. Mistakes and Errors

11. Why did we not get the results we expected?
There are 2 reasons:

12. A MISTAKE is something that can be fixed:
adding or other math operation wrong
not following directions
having a scale set to ounces (oz) rather than grams (g)
electronic scale not zeroed before weighing
misreading data
setting up a graph incorrectly
 A mistake can be fixed by going back and redoing the procedure correctly.
A MISTAKE:
can be fixed:
adding or other math operation wrong
not following directions
having a scale set to ounces (oz) rather
than grams (g)
electronic scale not zeroed before
weighing
misreading data
setting up a graph incorrectly
 A mistake can be fixed by going back and redoing the procedure correctly.

13. MISTAKES
EX: Mistake: Multiplied instead of divided/ wrote 1.54 instead of 1.45.
Mistakes can be corrected once they are pointed out (or by being careful the first time!)

14. AN ERROR: cannot be fixed, as it isn’t a mistake: how fast you chew
saliva makeup
electronic scale off
ruler not accurately marked
timer running slow or fast 
An error can’t be fixed – you may not even be aware it’s happened or is even there!

15. ERROR
Every measurement has some error. This is different than a mistake. An error is the difference between the measured value and the actual or theoretically correct value.

16. ERRORS
EX: Error: Inaccuracy of a measuring device Errors include inaccuracy of stopwatches, metersticks, etc., as well as human reaction time when timing. Any variable that cannot be completely controlled by the experimenter is open to error.