1. Scientific Investigation Using the scientific method and process skills to better understand the world around us. Using the scientific method and process skills to better understand the world around us.

2. Scientific Method Over time, scientists have developed a general way of doing investigations and looking for explanations about happenings in the universe. 1. State a problem 1. State a problem 2. State a hypothesis 2. State a hypothesis 3. Design an experiment 3. Design an experiment 4. Conduct an experiment 4. Conduct an experiment 5. Communicate findings 5. Communicate findings

3. The Experiment Ms. Meadows loves bubble gum and would like to be able to blow bigger bubbles than anyone at PHMS. She bought four different brands of gum and has planned an experiment to test the bubble power of the bubble gum brands she purchased.

4. State a Problem Ask a question Ask a question Which brand of bubble gum will blow the largest bubbles? Which brand of bubble gum will blow the largest bubbles? Do preliminary research Do preliminary research Check the ingredients on each package to see which has the greater percentage of gum base. Check the ingredients on each package to see which has the greater percentage of gum base.

5. State a Hypothesis Make a prediction or educated guess Make a prediction or educated guess If…then statement If…then statement Bubblicious has the greater percentage of gum base, it will produce larger bubbles. If Bubblicious has the greater percentage of gum base, then it will produce larger bubbles.

6. Design an Experiment List materials List materials 3 pieces of each brand of gum (Bubblicious, Double Bubble, Bubble Yum, Bazooka) Meter stick Balance scales Data table Write step by step procedures Write step by step procedures Measure four grams of each piece of gum Chew one piece of gum for five minutes Blow three bubbles with the chewed gum Record the measurements Repeat steps 2-4 for each piece of gum

7. Conduct an Experiment Follow procedures Follow procedures Collect and organize data Collect and organize data Record the measurement of each bubble on the data tableRecord the measurement of each bubble on the data table Piece 1Piece 2Piece 3 Avg Brand/ Bubble # 123123 123 Bubblicious Bubble Yum Bazooka Double Bubble

8. Communicate Findings Analyze data Analyze data Average the bubble measurements for each brand of bubble gum Organize data in a graph State conclusions State conclusions ________ is the best bubble gum for bubble blowing. ________ is the best bubble gum for bubble blowing.