IPS study notes

lab safety reaction in a bag heated baking soda measurement

Safety notes

For every Lab:

  • Goggles must be kept over your eyes until Mr. Leeds says to put them away(even if you finished and cleaned up your area)
  • 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 Classroom:

  • Fire extinguisher
  • Fire blanket
  • Eye wash/shower


  • Never taste chemicals
  • Always waft liquids to detect odor
  • Never waft solids or powders
  • Avoid touching chemicals
  • Always wash hands with soap and water after lab
  • If chemical touches skin: flush skin with water for one minute and notify Mr. Leeds


  • Hot glass and cold glass look the same
  • Never use chipped or broken glass
  • Tell Mr.Leeds and dispose of broken glass in proper trash
  • Never use force to remove or insert glass

Alcohol Burners:

  • Roll up sleeves, put up long hair, not just pull back( or you cannot do lab)
  • Never walked away from a lit burner
  • Never point the open end of a hot test tube at yourself or someone else
  • Do not look down into a test tube or beaker while it is being heated
  • Make sure burner is capped and flame is out when done

End Of Experiment:

  • Clean up area and materials completely ( or you lose points)
  • Make certain that burner is out if one was needed
  • Keep goggles on (over eyes) until Mr. Leeds says to put them away.

Baking Soda Lab


To observe and record the reaction that happens when baking soda is heated

Blue dot questions:

  • The baking soda is getting darker
  • Changing gas into liquid
  • Water is moving from inverted bottle into container
  • The gas came from water going into the bottle and since the bottle is being lit the water is turning into vapor
  • From the water vapor getting cooler and turning to liquid
  • The burned test tube is darker than the test tube that is not being heated. The baking soda stayed in the non-burned test tube.
  • No, cannot be both baking soda because the unheated is baking soda and the heated does not work the same

Experimental Errors:

  • Hole in tubing, wont see gas fill the bottle
  • Stopper is not snug
  • Period before did not clean the stirring rod

Reaction In A Bag

  • To record the observations that occur when multiple chemical substances are combined and to use my observations to understand the reaction of chemicals


  • picture below

Experimental Errors:

  • If there was a tiny hole in the bag

Big image

Measurement Lab

Volume: Divisions on the graduated cylinders.

  • 10mL- 0.2 mL
  • 25 mL- 0.5 mL
  • 50 mL- 1.0 mL
  • 100 mL- 1.0 mL

Length: measurement of the lines

  1. 2.10 cm
  2. 3.95 cm
  3. 11.51 cm

Measurement Notes


  • Unit of measures: cm3(cubic meters)
  • Volume: length x width x height(lwh)
  • Standard unit of length: meter(m)
  • 1 cm: 0.1 m
  • 100 cm: 1 meter
  • Use a graduated cylinder to masure volume
  • Always check the intervals