1. Does air have mass? Consider the experiment we did yesterday. Write a paragraph answering the question above. Be sure to support your claim with evidence. What facts and observations from yesterday’s experiment show that your answer is correct? Daily Challenge, 9/15

2. Practice using the scientific method by writing a hypothesis and rationale for this question… QUESTION: Does air have mass? How does the mass of an empty balloon compare to the mass of an inflated balloon? Independent, manipulated variable = inflated/deflated Dependent, responding variable = mass HYPOTHESIS: (your educated guess) RATIONALE: (reasons for hypothesis) Daily Challenge, 9/14

3. MATERIALS: (list materials needed)

4. PROCEDURE: (steps taken to test hypothesis)

5. OBSERVATIONS: (data collected)

6. ANALYSIS: (Tell how experiment was controlled. Graph and explain the data.)

7. CONCLUSIONS: (Explain whether or not your results support your hypothesis)

8. EXTENSIONS: (Discuss any errors in the experiment and remaining questions to be investigated)