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


  • 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


  • 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:


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?


  1. Volume
  2. Mass
  3. Count

  1. Volume
  2. Mass
  3. Other Mean

Measure Lines.

Determine how much liquid is in a cylinder.

Chapter 2 Test


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)


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