°9-26-08
LAB- PROPERTIES OF MATTER

Quantitative Observations~

Length of one side- 4 centimeters
Width of one side- 2 centimeters
Height of one side- 1 centimeters
Mass of brick- 22.85 grams9
Volume of brick- 8 centimeters cubed
Density of brick- 2.9 grams per centimeter cubed




10-3-08

Inference

I infer that the brick and screw are made of the same material. First because they have a similar density of 2.7 g/cm3, and 2.8 g/cm3.
Object

1

2

3

4

5

6

7

Bolt

1.2

1.2

1.2

1.2

1.5

1.2

1.3

Screw

1.0

2.7

2.6

2.2

2.2
2.7

2.2

Nail

7.6

7.5

7.5

7.5

7.6

7.9

7.6

Rod

8.9

1.3

11.9

7.2

8.9

8.9

9.2

Cylinder

9.4

9.4

1.01

0.9

7.0

1.0

4.8


10-20-08
Mass(g)
Volume(cm³)
Density(g/cm³)
55.25
31
1.78
29.75
17
1.49
13.40
9
1.75
10.33
11
0.94


IMG00073.jpg
This is the class data from the Clay Density Lab




IMG00074.jpg
This is a continuation of the Class Data


10-23-08

Clay Boat Lab

http://www.spartechsoftware.com/reeko/experiments/floating.htm

=This is a link about boats and their boyancy. Our group found it very helpful. Hypothesis~ The clay boat floats because the shape of the bottom of the boat is affecting the boyancy of it. Independant Variable~ ShapeDependant Variable~ Floatability or Buoyancy 10-27-08 Rays are plasma because the particles break under the speed(not nessicarily their own). Phillies are gas gas because the molecules have a low strength of attraction, and have a high speed, but do not break apart. Marlins are liquid because the particles are slow and not strong. Yankees are solid because they have a high strength of attraction(they are strong). 10-28-08States of Matter liquidsolidgasplasma 11-14-08 Question- What will happen to the temperature, if you fan a thermometer? Purpose- To find what happens to the temperature if the thermometer is fanned. Hypothesis- The Temperature will decrease. Independant Variable- Fan TemperatureDependant Variable- Temperature Constants- Thermometer,Starting Temperature, and Amount of Time Fanned ||

||= ||= Temperature C ° ||= || ||= Fan Speed ||= 1 ||= 2 ||= 3 || ||= Still ||= 25 ||= 25 ||= 25 || ||= Slow ||= 25 ||= 25 ||= 25 || ||= Medium ||= 25 ||= 25 ||= 25 || ||= Fast ||= 25 ||= 25 ||= 25 || 11-17-08 As the temperature sensor was fanned, the temperature remained the same. There is no correlation between the temperature of the temperature sensor and the fan. The data shows that as the fan speed ranged from still to fast, the average temperature stayed at 25°C. My hypothesis was disproved. My hypothesis was that the temperature will decrease. This was showed in the table by the temperature remaining at 25°C throughout the whole experiment. 12-10-08Saftey Rules
  • Saftey glasses must be on at all times when carrying out the experiment
  • long hair back
  • No dangely jewlery
  • Stand up
  • Cord behind the board
    Movie Notes
    Kinetic energy is when an object is in action.
    The first hill on a rollercoaster is always the highest because of all of the stored potential kinetic energy that is transferred.
    A book on the edge of the table has potential kinetic energy because energy was used to lift it.
    When the book falls it has energy.
    All objects that move have Kinetic energy.
    A battery and wood have chemical energy.
    The equation for potential is height times weight.

    Steel Wool Lab IMG_1100[1]
  • After the first day we found no signs of rust occuring.
  • Both water levels rose.
  • After the second day, there is still no signs of rusting.
  • After the third consecutive day, there is still absolutely no signs of rust.
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Rust
  • Rust's scientific name is oxidation.
  • Rust occurs when oxygen comes in long term contact with some metals.
  • Iron rusting is and example of corrosion.
  • The corrosion of aluminum is extremely slow.

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