IPS Exam Experience

It's Cool!

Scientific Method Notes

1. Identify the problem.

2. Gather Info.

3. Form hypothesis or theory.

4. Test theory, then experiment.

5. Analyze the data.

6. Finally conclude and create a conclusion.

Chapter 1

Lab 1.1- Baking Soda Lab

-Baking soda is also known as sodium bicarbonate.

-Baking soda releases gas when heated.

-Tea is the indicator.

-Control group is the unheated baking soda and tea.

-Experimental group is the heated baking soda and tea.

-When heating soda is heated, it is no longer baking soda.

-Condensation is created when b. soda is heated.

-If the color is different, the the heated b. soda must've been changed.

-Control Factors

a. amount of baking soda.

b. amount of tea.

c. same type of tea.

d. amount of stirring time.

-Experimental Errors

a. Hole in the tubing.

b. Rubber stopper is loose.

c. Tubing isn't in the top of the bottle.

d. Cap burner before removing tube.

-Cubic Centimeters equals Millilitters.

Volume Notes

Unit of Measurement- Cubic Centimeters.

Equation- L x H x W.

1 centimeter equals .01 meter.

100 Centimeters equals 1 meter.

1 mL = 1cm3.

Lab 1.4- Displacement of Water Lab

-Sand + Water - Water = Sand Alone

-Dry Sand - Sand Alone = Air Space

-Experimental Error- Funnel in wrong place.

-is over of = air over dry sand.

Lab 1.8- Paper Square Stuff

-Calculating a single square out of a 20 x 20 square - divide 20 x 20 mass by 400.

-Delta Mass = Change in mass.

-Sensitivity of Balance= Delta Mass divided by # of yes'.


Chapter 2

Lab 2.1- Dissolving Salt!

-HISTOGRAMS WOAH.

Lab 2.4- Ice Ice Baby

-Condensation comes from warm water vapor touching the cooler surface of bottle. It changes from gas to liquid.

Conservation of Mass Notes

In a closed system, mass will remain constant, reagard less of the actions of the processes inside the closed system. Mass is always conserved, however in a nuclear reaction some mass is lost. The energy released in a nuclear reaction will be absorbed into surrounding material, add mass to it. So the mass isn't really "lost."

Chapter 3

Properties

Property of object: describes the object itself.

Property of substance: identifies what the object is made up of.

Mass and Volume Notes

-Objects that are made of the same substance that have the same volume, will have the same mass. (Regardless of shape.)

-The mass of an object will double if its volume doubles.

-Objects that have the same volume but are made of different substances will not have the same mass.

Density

Mass divided by Volume = Density

Units= g/cm3


Al= Aluminum = 2.7g/cm3

Measuring Volume of a Cube

Start at one corner and measure three directions.


*For accuracy all Lab Partners should check measurements.

Lab 3.5- Metal Object Densities

-Rock was sedimentary, made up of different substances.


Mass Increase = Density Increase

Volume Decrease = Density Increase

Mass Decrease = Density Decrease

Volume Increase = Density Decrease


Lab 3.6- Comparing Liquids with Densities

Magnesium Sulfate - Epsom Salt

Section 3.8- These Shenanigans

Lead : 11.3 = 1000 divided by V, Cross Multiply 11.3v = 1000, Divide by 11.3 = 88.5 cm3


Gold : 19.3 = M divided by 100, Cross Multiply = 1,930.


1.2 x 10^-3 g/cm3= M divided by V, 11m x 17m x 3m. 1100cm, 1700cm, 300cm =5.6 x 108cm3 Final= 6.7x105