• Unit of measurement- cubic centimeters (cm^3)
• Volume- lwh
• Standard unit of length- meter (M)
• 1cm= 0.1m_________100cm=1m
• Unit- small cube 1cm on each edge

Volume of Liquids:

• use a graduated cylinder to measure volume (always check intervals or scale)
• Units- milliters (mL) or cm^3 (1mL=1cm^3)
• read from bottom of meniscus

1. check that pan is clean and dry

2. always zero balance before each massing

• push all riders to zero (left)
• use adjustment knob if needed

3. never switch pans

4. pick up balance by red bar only

5. don't zero balance when done

For Every Lab:

• goggles over eyes until directed to take them off (even if finished)
• report all accidents/ spills to Mr. Leeds immediately
• try to use common sense

In case of emergency:

• 2828

Safety equipment in classroom:

• fire extinguisher
• fire blanket
• eye wash/ shower

Chemicals:

• never taste
• never touch
• always waft liquids
• never waft solids/ powders
• wash hands with soap and water after lab
• if chemicals on skin: flush skin with water for a minute and tell Mr. Leeds

Glass:

• hot and cold glass look the same
• never use chipped/ broken glass (tell mr. leeds and dispose correctly)
• never use force to insert or remove glass

Alcohol Burners:

• roll up sleeves; tie up hair
• never walk away from lit burner
• never point open end of test tube at yourself or someone else
• don't look down into heated beaker/ test tube
• make sure burner is capped and flame is out when done

End of Experiment:

• clean up area and materials (or points lost)
• make sure burner is out
• keep goggles on eyes until otherwise directed

• Baking soda used in baking because it releases gas when heated which helps dough to rise.
  
• 50cm^3 needs to fill a graduated cylinder to the 50m: mark
• Advantage of narrow/ tall cylinder: line are further apart b/c theres less surface= more depth makes it easier to read

• Gas- from the heated baking soda
• Condensation- from hot gas touching cooler surface at top, test tube cools back to a liquid
• Control Group: unheated test tube
• Experimental Group: heated test tube
• Indicador- Tea (shows you that heated test tube wasn't baking soda)
• Variable- something you want to measure
• Independent Variable- causes a change in dependent variable (temperature; heat)
• Dependent Variable- Color of the tea
• Control Factors- same type of tea, same amount of baking soda, same amount of tea, same stirring time, same size test tube