Snail Slime Lab Essential Questions How are problems

Snail Slime Lab • Essential Questions: – How are problems solved? – What are the steps of the scientific method? – What are the different parts in an experiment? • Starter: How are these terms related? – – – – Theory Data Hypothesis Procedures Discussion Conclusion Charts

Step #1: Selecting a Topic • As a team select a question related to the problem. • If your team would like to derive another question that is fine. Make two new questions based on the problem and then have me check the two questions.

Step #2: Hypothesis • A hypothesis must have… – What you are changing in the experiment (If…) – The result you expect to occur (then…) • Scenario: Jack Fringer is running 4. 43 seconds in his fly ball heat. Tim would like Jack’s goal to get down to 4. 25 seconds. Jack’s treat in fly ball is string cheese. Tim is going to give Jack Beef Jerky instead. Write a hypothesis. • flyball slide

Step #2 - Hypothesis • Write a hypothesis for YOUR question you chose in step one. • Remember a hypothesis must be testable and revalant to your question.

Step #3 - Procedures • Begin writing your procedures down. Step by step. • Make sure as you write your procedures you include a control group, control variable, independent variable, and a material list. • Also include how you will coax the snail from the shell and care for the snail.

Step #4 – Checking Procedures • As a group read back through your procedures and … – Circle the independent/manipulated variable – Underline the dependent/responding variable • Must have both qualitative and qualitative data – Squiggle line the control variable/s – Box in the control group. – Triangle the experimental group If a variable or group is missing you need to revise your procedures.

Taking Quantitative Data • Analyze ruler. – Have people measure the same card and write down their measurements. • Significant figures – A measurement with all known numbers plus one that is estimated.

Why are significant figures important? • 2008 Olympics Michael Phelps won his swimming race with a time on 52. 13 s; the second place winner’s time was 52. 17 s. • If the hundredth's place was not present, then the race would have been a tie. • Make sure you use significant figures when you measure in your lab.

Step #5 – Creating a data table • Draw and label the chart you will use to keep you data in.

Step #6 – Test experiment…finally • How can I execute an experiment?

Share data with others • What role do collaboration and communication play in science?