Bell Ringer What is the information on this graph telling us? Write your answer on White Board.

Scientific Graphs (Page 17) Essential Question *How are scientific graphs used to understand data?

1. Bar graph - used for comparing different groups of data (amounts of data) Type of Trash Number of pieces Cigarettes 14,000 Styrofoam 6,100 Plastic 5,220 Paper 4,963 Wood 1,091 Metal 982 Glass 511 Cloth 503 Rubber 210 Other 644

1. Bar graph Comedy Action Romance Drama Sci-Fi

2. Pie graph - used for comparing percentages of a set of data U.S. Electricity generation by source Percentage % Coal 44.9 Natural gas 23.4 Nuclear 20.3 Hydroelectric 6.9 Petroleum 1.0 Other renewables 3.6

2. Pie graph

Bell Ringer What do you predict the temperature will be after 70 minutes? Write your answer and defend it on White Board.

3. Line Graph – shows data over changes in time, distance, or other measurements. 25 20 15 10 5 Number of Pendulum Swings Number of Pendulum Swings (RATE) • • • Length of Pendulum Trial 1 Trial 2 Trial 3 Average 30 cm 23 22 22.7 (23) 40 cm 21 21.3 (21) 50 cm 19 10 20 30 40 50 60 Length of Pendulum (in cm)

**shows how the dependent variable responds to the independent variable. 25 20 15 10 5 Number of Pendulum Swings Number of Pendulum Swings (RATE) • • • Length of Pendulum Trial 1 Trial 2 Trial 3 Average 30 cm 23 22 22.7 (23) 40 cm 21 21.3 (21) 50 cm 19 10 20 30 40 50 60 Length of Pendulum (in cm)

*Line graphs allow scientists to identify trends and make predictions 25 20 15 10 5 Number of Pendulum Swings Number of Pendulum Swings (RATE) • • • Length of Pendulum Trial 1 Trial 2 Trial 3 Average 30 cm 23 22 22.7 (23) 40 cm 21 21.3 (21) 50 cm 19 10 20 30 40 50 60 Length of Pendulum (in cm)

*Line graphs allow scientists to identify trends and make predictions Number of Pendulum Swings 25 20 15 10 5 • • • Number of Pendulum Swings (RATE) Mass of Pendulum Trial 1 Trial 2 Trial 3 Average 14.2 g 22 21 21.7 (22) 28.7 g 42.8 g 5 10 15 20 25 30 35 40 45 Mass of Pendulum (in grams)

*Line graphs allow scientists to identify trends and make predictions

**When making a graph, numerical values must be in even increments RIGHT WRONG Number of Pendulum Swings 20 12 10 8 5 4 3 2 20 15 10 5 10 20 30 40 50 60 70 80 90 100 1 2 4 7 15 30 40 50 60 65 70 100 Length of Pendulum (in cm)

**When making a graph, numerical values must be in even increments

Important – Graphs must be Titled & Labeled Oakleaf Junior High Students Favorite Types of Movies Number of Students Types of Movies

Important – Graphs must be Titled & Labeled Oakleaf Junior High Students Favorite Types of Movies

Important – Graphs must be Titled & Labeled Orange Park

Conclusion Quick Write - How are scientific graphs used to understand data? Give at least one example. *Write your answer below your notes.