LAB REPORT MUST BE ORIGINAL WORK , NO PLAGARISM . USE 5 POINT TIER
You should only choose from the materials suggested to complete your experiment, which include:
a freezer or cooler filled with ice
balloons
string and metric ruler or measuring tapE Consider the following questions as you plan your investigation:
What is your independent variable?
What is your dependent variable?
What are your controls?
How many trials will you conduct?
How long will you need to let the balloon sit in the freezer before measuring the balloon Use these procedures as guidelines for your experiment.
Fill each balloon with approximately the same amount of air.
Use a marker to draw a line around each balloon.
Place a string or measuring tape around the line and record the circumference of the balloon. If using string, you will need to measure the length of the string with a ruler.
Place the balloons in the freezer or cooler filled with ice.
Re-measure the circumference of the balloon after some time.
Clean your lab area by disposing of the balloons.
Answer these questions in the introduction of your Lab Report:
What are some properties of gases?
What was the purpose of your experiment?
Which equations did you use to calculate the radius and volume of the balloon?
Answer these questions in the discussion and conclusion of your Lab Report:
What is the relationship between temperature and volume of a gas? Be sure to support your claim with evidence from your results.
Explain what happens to the particles in a gas when the temperature decreases. How does the particles’ change in motion explain your observations about the balloon’s volume?
What are some sources of error in your experiment?
How could you modify this experiment?
Be sure to look at the Lab Report Rubric to see how you will be graded.
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