IPS Exam Experience
Day 2: Multiple Choice, True/False, & Matching (vocab)
Laboratory Safety Instructions
For Every Lab
Goggles must be kept ON YOUR FACE until Mr. Leeds says to put them away
Report ALL accidents/spills to Mr. Leeds immediately
Always use common sense
In Case of EmergencyThe extension number for the nurse is 2828.
Safety Equipment in Classroom
Never taste chemicals
Always WAFT liquids to detect odor
NEVER WAFT SOLIDS/POWDERS!
Avoid touching chemicals
Always wash hands with soap and water after lab
**Flush skin with water if contact with chemicals occurs** AND notify Mr. Leeds
Hot glass and cold glass look the same
never use chipped or broken glass
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 opoen 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
Acid must be added to water
Never add water to acid
- could cause an exothermic reaction
- water is less dense (lighter) than acid so it will sit on top of acid and could splash out
End of Experiment
Make sure burner is capped and flame is out
CLEAN-UP AREA & MATERIALS COMPLETELY!!!! (Or you LOSE points)
- Identify the problem.
- Gather the information.
- Form a hypothesis/theory.
- Test the hypothesis (experiment)
- Analyze the death.
- Draw/form a conclusion
LAB: Reaction in a Bag
Purpose: To record observations that occur when substances are combined.
- exothermic (outside heat)
- Pressure is created from the formation of a gas
- One liquid turns warm (A) and the other turns cold (B)
- Control Group
- Experimental Group
- Control Factors
- Volume Displacement Technique
LAB: Heating Baking Soda
Purpose: To observe and reaction that occurs when the baking soda is heated.
1.2 Volume Notes
Single Pan Balance Notes
LAB: Measuring Volume by Displacement of Water
Purpose: To use the volume displacement of water method to discover the amount of dry sand that is sand and air space.
LAB: The Sensitivity of a Balance
Purpose: To discover the sensitivity of your balance. Also, to see if you mass the same object repeatedly, will you find the same mass.
- Conservation of Mass
- Laws of Nature
LAB: The Mass of Dissolved Salt
Purpose: To discover if the mass of the salt will decrease when dissolved in water
LAB: The Mass of Ice and Water
Purpose: To determine if when ice melts does its mass change along with its volume.
LAB: The Mass of Copper and Sulfur
Purpose: Does the total mass of copper and sulfur change when they are heated together?
LAB: The Mass of a Gas
Purpose: To discover when a solid and liquid produce a gas, will the mass change change.
Conservation of Mass
- Characteristic Properties
- Property of Object
- Property of Substance
LAB: Mass and Volume
Purpose: To discover if the mass of a cubic centimeter object will depend on its shape of the substance that it is made of.
LAB: The Density of Solids
Purpose: To use density to compare 3 metal objects to see if they are made of the same substance.
LAB: The Density of Liquids
Purpose: To use density to compare 2 liquids to see if they are the same substance.
LAB: The Density of a Gas
Purpose: To produce and collect a gas in order to accurately find the density of the gas.