1. Do Now November 1, 2012

2. 1. Physical properties are: A.those properties which include combustibilty, flammability, and reactivity. B.those properties which can be observed without changing the identity of the substance. C. those properties which require a chemical reaction to be observed. D.all of these 2. Which of the following correctly lists the states of matter from the most particle movement to the least particle movement? A.solid, liquid, gas B.liquid, solid, gas C.gas, solid, liquid D.gas, liquid, solid 3. When a substance freezes, it changes from a ________ into a ________. A.solid; liquid B.gas; liquid C.liquid; gas D.liquid; solid

3. Multiple Choice Handout  Complete hand-out/ keep for future resource

4.  For the following example, we will make a bar graph of the data set to the right, giving information about a group of children's favorite color.

5. Given data Favorite ColorNumber of Students 22 15 11 5 2 Red Blue Green Black Pink

6.  Look at your data to determine how big your bar graph should be and whether horizontal or vertical bars will fit better on your paper.  Decide the scale your bar graph will have. This is determined by the biggest and the smallest numbers in your data set.by the  In the data from our example, the biggest number is 22; the smallest is 2. In this case, a scale showing multiples of 5 makes creating and reading the graph easier. Label the scale on your graph.

7.  Decide how wide the other axis should be to show all of the type of data (5 colors in this case). Label this axis of your graph.  Draw the rectangles the right length to represent the data. Pick a good width for the data bars. Color coding can make a graph easier to read.  Give your graph a title

8.  Identify the variables  Independent Variable - (controlled by the experimenter)  Goes on the X axis (horizontal)  Should be on the left side of a data table.  Dependent Variable - (changes with the independent variable)  Goes on the Y axis (vertical)  Should be on the right side of a data table. Step 1:How To Construct a Line Graph On Paper

9.  Subtract the lowest data value from the highest data value.  Do each variable separately. Step 2: Determine the variable range

10.  Determine a scale, (the numerical value for each square), that best fits the range of each variable.  Spread the graph to use MOST of the available space. Step 3:Determine the scale of the graph.

11.  This tells what data the lines on your graph represent. Step 4:Number and label each axis.

12.  Plot each data value on the graph with a dot.  You can put the data number by the dot, if it does not clutter your graph. Step 5:Plot the data points.

13.  Draw a curve or a line that best fits the data points.  Most graphs of experimental data are not drawn as "connect- the-dots ". Step 6:Draw the graph.

14.  Your title should clearly tell what the graph is about.  If your graph has more than one set of data, provide a "key" to identify the different lines. Step 7:Title the graph.