1. Scientific Method AND matter

2. Scientific Method Parts- -Problem -Always a question format -Hypothesis - Educated Guess? Oxymoron It is a prediction based on previous experience and knowledge.

3. -Procedure Another name?Experiment Reproducible- Can be done by anyone and get the same results - Data - Two general types Qualitative - Observations, descriptions, adjectives. - Quality

4. -Quantitative -Quantity A measurement, numbers, measuring tools - Pictorial Charts -Columns and rows Graphs -3 types Line -Change over time Bar -Comparison of numbers Pie -Percentage or #’s out of 100

5. Graph these dataSets Time Rocket reached a particular height Rocket 1Rocket 2Rocket 3 10 m 0.10.20.05 20m 0.20.30.1 30m 0.50.40.2 40m 0.60.450.3 50m 0.90.480.4 Percentage of gasIn the atmosphere Carbon1 Nitrogen Dioxide0.04 Oxygen19 Carbon Monoxide0.5 Nitrogen78 Ozone1.01 Helium0.06 Sulfur Dioxide0.39 Runner’s Best Time Runner's #Time 1Time 2Time 3Average 5045.25.35.15.20 5054.94.54.84.73 6073.94.14.64.20 7034.54.84.24.50

6. -Parts of a good graph - -Fit the space you are given -Labels -Axis -Title -Units -Graduations -Your choice -Do not have to start at zero -Legend - -Cannot cover data - You can have more that one line (or Bar) on the graph. - Only show the data that helps prove your hypothesis

7. -Conclusion-3 parts 1 - Did you prove your hypothesis and why? - Use your data to back it up 2- If you were to do this experiment over, what would you change to get better results? 3- How can you experiment further to test something similar? “ If this is the answer to this question, then I wonder if... “

8. Matter -Definition- Anything that has mass and takes up space -Characteristics -Has mass -Gravity can affect it -Has volume-Takes up space -matter cannot occupy the same space that matter is already in. -Chemical-How it reacts to other matter -Physical-Has to do with the five senses

9. -Physical Properties -Density-The relationship between mass and volume -Formula - D = m. v -D  Density -m  mass - v  volume-ml, L, gal, oz. -cm 3, ft 3, mm 3 - g, kg, lb, tn - g/ml, kg/L - Regular Object – has a length width and height -Irregular Object – Does not have a length width and -height - Find volume using displacement method

10. - Practice problem What is the density of a 75 g block of wood measuring 12 cm x 8 cm x 9 cm? - Formula first D = m. v -D  -m  - v  - Identify Numbers 75g 864 cm 3 12 cm X 8cm X 9cm = 864 cm 3 - Substitute numbers in D = 75g. 864cm 3  - The work it takes to solve =.087 - AND DON’T FORGET THE UNITS! g/cm 3

11. -To get full credit for the math that is done in class you MUST : - Show the formula for EACH problem - Substitute numbers in the formula - Show your work to solve - AND DON’T FORGET THE UNITS!

12. Archimedes Day!!!

13. Key concepts: - Archimedes principle: an object is buoyed up by a force equal to the mass of the fluid displaced. -It floats when the weight of the water displaced equals the weight of the object. - Objects sink until they float - -The object will sink, sink, sink until enough water has moved out of the way to equal the weight of the object and it begins to float. - Matter will float if it is less dense than what it is placed in. Density of water = 1.0 g/ml

14. -Particle theory of matter - Phases of matter - - Solid - Liquid - Gas - Plasma - Definite shape and definite volume - indefinite shape and definite volume - indefinite shape and indefinite volume - Heated ionized (charged) gas Close Far Entropy – All matter is in constant motion. Even in solids, the particles are vibrating in place.