1. Teacher Page I. Scientific Inquiry A. Processes of Scientific Inquiry. State standards 1.6 7th grade assessment. Students should be able to organize information into graphs. View lesson before using with students. Mouse clicks are used to advance slides and add information to each slide.

3. Make Graphs to Organize Data When you do an experiment in science, you collect information. To find out what your information means, you can organize it into graphs There are many kinds of graphs Circle Graph Bar Graph Line Graph

4. Circle Graphs A circle graph is helpful to show how a complete set of data is divided into parts. The circle graph here show how water is use in the United States. What is the single largest use of water? Electric Power plants. 49% 33% 10% 8%

5. Bar Graphs A bar graph uses bars to show information. For example, what if you wrap wire around a nail and connect the ends to a battery? The nail becomes a magnet that can pick up paper clips.

6. Bar Graphs What does the graph show? The more you wrap the wire around the nail, the more paper clips it picks up. How many paper clips did the nail with 20 coils pick up? 3 paper clips With 50 coils? 9 paper clips

7. Line Graphs A line graph shows information by connecting dots plotted on the graph. For example, you measure how high a plant has grown each week for 8 weeks. The line graph below organizes the measurements.

8. Line Graphs Between which two weeks did the plant grow most? Weeks 5 and 6. When did plant growth begin to level off? Week 7.

9. Make a Graph What if you collect information about how much water your family uses each day? Decide what type of graph would best organize such data. Collect the information, and make your graph. Compare it with those of classmates. Activity Water Used (L) Drinking 10 Showering 180 Bathing 240 Brushing teeth 80 Washing dishes 140 Washing hands 30 Washing clothes 280 Flushing toilet 90