Science Exam
Safety - 3.8
ISP Lab Safety Notes:
For Every Lab:
- Goggles must be kept over your eyes until Mr.Leeds says to put them away (even if you already finished and cleaned up)
- Report all accidents and spills to Mr.Leeds immediately
- Try your best to use common sense
In Case of Emergency:
- Nurse: Ext: 2828
Safety Equipment in Classrooms:
- Fire extinguisher
- Fire blanket
- Eye wash/shower
Chemicals:
- Never taste chemicals
- Always waft liquids to test odor
- Never waft solid powders
- Avoid touching chemicals
- Always wash hands with soap and water after lab
- If chemicals touch skin: flush skin with water for 1 minute and notify Mr.Leeds
Glass:
- Hot glass and cold glass looks the same
- Never use chipped or broken glass (tells Mr.Leeds and dispose of broken glass in proper trash
- Never use force to remove or insert broken glass
Alcohol Burners:
- Roll up sleeves, put up long hair, (not just pulled back or you cant do the lab)
- Never look away from a lit burner
- Never point the open of a hot test tube at yourself or someone else
- Do not look down into a test tube/beaker while it is being heated
- Make sure burner is capped and flame is out when done
Emd of Experiment:
- CLEAN-UP AREA & MATERIALS COMPLETELY!!! (Or you loose points)
- Make sure the burner is out if one was used
- Keep goggles on your eyes until Mr.Leeds says to put them away
Chapter 1 Test:
Calculations:
L x W x H= V
Volume of Dry Sand-
Volume of Water-
Volume of Sand and Water-
Volume of Sand Alone-
Volume of Air Space-
% of Dry Sand that is Sand-
% of Dry Sand that is Air Space-
Sensitivity of a Balance-
Did any student make mistakes? Where there massing off? How would you tell?
Measurements-
- Volume
- Mass
- Count
- Volume
- Mass
- Other Mean
Measure Lines.
Determine how much liquid is in a cylinder.
Chapter 2 Test
Calculations:
Mi of a substance
Mf of a substance
Delta M
Percentage change in mass- dm over mi = x over 100 (cross multiply)
Chapter 3 Test (3.1-3.8)
Calculations:
D= M over V
Delta M
Delta V
Mass of gas (it is the delta M positive)
Volume of gas (it is the delta V positive)
Density of gas
others in note book