IPS Quiz #1 Study Guide
Saftey Quiz, Heating Baking Soda Lab, and Measurement Lab
Safety Quiz ☢
- Goggles must be kept over your eyes until Mr. Leeds says to put them away
- Report all accidents to Mr. Leeds
- Try your best to use common sense
- Nurse: ext. 2828
- Fire extinguisher
- Fire blanket
- Eye wash/shower
- Never taste chemicals
- Always WAFT liquids to detect odor
- NEVER WAFT SOLIDS/POWERS
- 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 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
- Roll up sleeves, put UP long hair, NOT just pull back (or you cannot do lab)
- NEVER walk 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/beaker while it is being heated
- Make sure burner is capped and flame is out when done
- CLEAN-UP AREA & MATERIALS COMPLETELY! (or else you LOSE points)
- Make certain that burner is out if one was used
- Keep goggles on (over eyes) until Mr. Leeds says to put them away
Reaction in a Bag → Lab (Quiz Notes)
Purpose → To observe and record reactions that occur when multiple chemical substances are combined and to use our observations to understand the reactions of the chemicals
SOLID A
SOLID A
- Calcium chloride
- Acidic
- Hydrotrophic → it absorbs water
- Sodium bicarbonate (baking soda)
- Not acidic
- Uses: toothpaste, cookies, cake, laundry detergent, cupcakes
- Phenol Red
- Used as a pH indicator → below 7 turns yellow, above 8 turns pink
Heating Baking Soda → Lab (Quiz Notes)
control group → unheated baking soda + tea
experimental group → heated baking soda + tea
indicator → tea
variables → a category you try to measure
independent variable → causes a change in the dependent variable (temperature - heat)
dependent variable → tea color
control factors (things you can control) → same type of tea, same amount of baking soda, same amount of tea, same size test tube, even out your stirring time
experimental errors → hole in the tubing or the stopper isn't snug = won't see the gas fill the bottle || not cleaning the stirring rod = contamination
experimental group → heated baking soda + tea
indicator → tea
variables → a category you try to measure
independent variable → causes a change in the dependent variable (temperature - heat)
dependent variable → tea color
control factors (things you can control) → same type of tea, same amount of baking soda, same amount of tea, same size test tube, even out your stirring time
experimental errors → hole in the tubing or the stopper isn't snug = won't see the gas fill the bottle || not cleaning the stirring rod = contamination
Heating Baking Soda → Lab (Box Questions)
1. When heated, it releases a gas. It helps batter rise.
2. Glasses, microscope, thermometer
2. Glasses, microscope, thermometer
Volume Notes → (Quiz Notes)
unit of measurement → cm³ (cubic centimeter)
volume = L x W x H
unit of length = metric
centimeter = 0.1 meter
100cm = 1m
**use a graduated cylinder to measure volume**
volume = L x W x H
unit of length = metric
centimeter = 0.1 meter
100cm = 1m
**use a graduated cylinder to measure volume**