Scientific Investigations with Gizmos Note to teachers… While most of the Gizmos listed below can be used with any grade level, some lend themselves better to elementary and others to secondary. Please help you students use good judgment in selecting the right Gizmo for their scientific exploration. In addition, you may choose how your students display and submit their reports. The list of Gizmos, directions and experiment design format/vocabulary listed below are suggestions for helping you and your students get started. Directions 1. Use the one of the recommended Gizmos from the list below. 2. Use the “Student Exploration Guide” found at the Gizmo to help you use the Gizmo and set up the experiment. This is VERY IMPORTANT since the Student Exploration Guide will let you know how the Gizmo works. Many of the Student Exploration Guides have “Designing an Experiment” as one of the activities or extension activities. 3. Follow experimental design to explore the idea of your choice. Design a properly controlled experiment. Use the table listed on the next page to help structure your experiment. Write out your Title, Question and Hypothesis. Write out your variables. Write out a detailed Procedure. 4. Use screenshots and the data from the Gizmo to show the setup of your design and of your results. Write up your conclusions. Possible Gizmos to Choose From: Growing Plants Seed Germination Forest Ecosystem Diffusion Prairie Ecosystem Hearing: Frequency and Volume Germination Sight vs. Sound Reactions Pond Ecosystem Reaction Time 1 (Graphs and Statistics) Effect of Environment on New Life Form Reaction Time 2 (Graphs and Statistics) Pendulum Clock Reverse the Field Pond Ecosystem Disease Spread Pattern Finder Mystery Powder Analysis Plants and Snails Herschel Experiment Effect of Temperature on Gender Rainfall and Bird Beaks Phet Interactive Simulations- University of Colorado Boulder http://phet.colorado.edu/ Click on “Browse Activities” under the “For Teachers” heading The Potomac Highlands Watershed School http://www.cacaponinstitute.org/e_classroom.htm Click on “BMIs” and then on “A Virtual Stream Sampler” Hint- Read the descriptions of the streams first before making a hypothesis. Virtual Science Fair Using Gizmos- Experimental Design Use this chart to help guide you. All parts listed should be in your final project (poster and/or paper). Title The Effect of (the IV) on (the DV) NOT the title of the Gizmo Question What do I want to know? Hypothesis What is your educated guess? Independent Variable (IV) What is being changed and how is it being changed? Dependent Variable (DV) What is being measured in response to the IV? Constants What variables are remaining the same? Controls What are you comparing your results to so you know if your hypothesis is correct or incorrect? Procedure A detailed step by step to your experiment so that someone else could do it. Results Charts, graphs, data, statistics and observations that help determine if your hypothesis is correct or incorrect. Conclusion A summary of your question, hypothesis, what you did, what you found out and WHY (at least why you think) the outcome was the way it was and what you could explore in a future experiment.