Introduction

In this activity, students will design an experiment to simulate how temperature, pressure, and time might affect oil formation. Students will not be physically simulating oil formation but will design an experiment to explore which factors they think are most important for the formation of oil.

Materials

• Student Handout
• Internet access
• Whiteboards or poster paper (Optional–Students could complete the experimental design on the student handout and/or write it on large whiteboards or poster paper and share their experiment with the class).

Student Objectives

Students will be able to

• Explore the factors that affect oil formation (temperature, pressure, and time). 
• Design an experiment to simulate the process of oil formation under different conditions.
• Use research and reasoning to predict and analyze data on the factors that influence oil formation.

Procedure:

1. Background Information: 
Oil forms from ancient organic matter (mainly plankton) that gets buried by sediments over millions of years. As the organic matter is buried deeper in the earth, it is subjected to heat and pressure. Over time, these conditions cause chemical reactions that transform the organic material into oil and gas.

The process of oil formation can be simplified to three main factors:
A. Temperature: Heat accelerates chemical reactions, leading to the formation of hydrocarbons.
B. Pressure: Pressure can influence the phase and movement of oil, pushing it through rock layers.
C. Time: Over millions of years, these conditions continue to break down organic material into oil.

2. Experimental Design (40 minutes) 
Ask students to:

1. Formulate a Hypothesis:
   Have each student or group come up with a hypothesis about how one of the factors (temperature, pressure, or time) influences oil formation. For example:
   • “I hypothesize that higher temperatures will cause oil to form faster.”
   • “I hypothesize that higher pressure will lead to more oil formation in less time.”
   • “I hypothesize that oil formation requires long periods of time, even with high heat and pressure.
2. Design the Experiment:
   Each group should outline an experiment to test their hypothesis. They will need to include the following elements in their design:
   • Variables: Identify independent (temperature, pressure, or time) and dependent variables (amount of oil formed, rate of oil formation).
   • Controlled Variables: List factors that must be kept the same for all trials (e.g., amount of organic material, type of material, environment).
   • Materials: Describe what materials would be needed in a real lab setting to simulate the conditions of temperature, pressure, and time (e.g., a heated chamber for temperature, a pressurized chamber for pressure).
   • Data Collection: How will they measure the oil formation? Would they use indicators like color change, amount of liquid produced, or another measurable property?
   • Procedure: Write a step-by-step procedure for how the experiment would be carried out. 

3. Simulate Data Collection (15 minutes)
Since students can’t physically perform the experiment, they will need to use reasoning and research to predict possible results. They can:

• Use secondary data from online sources or research studies to find typical rates of oil formation under different conditions.
• Estimate what kind of oil formation they might expect under various temperature, pressure, and time scenarios.
• Suggested Resource: Science of Oil Extended Reading

4.  Graphing and Data Analysis (15 minutes)
Students will use their predicted data to create graphs (e.g., temperature vs. oil formation rate) and discuss their findings. 

Discussion Questions

The questions below are included in the Student Handout and can be used to generate a class discussion.

• Based on your experiment design, which factor do you believe is most important in oil formation: temperature, pressure, or time? Why?
• How do you think this experiment would change if you used different types of organic material (like plant matter vs. plankton)?
• If you were able to conduct this experiment with actual equipment, how would you ensure that you get accurate and reliable results?
• How do these results relate to real-world oil exploration? How do geologists determine where oil might be found?

Conclusion:

End the activity with a brief discussion about how oil exploration uses a combination of scientific knowledge and technology to locate potential oil reserves. Highlight that while experiments like these help us understand the basics of oil formation, real-world exploration involves a lot of complex data and specialized equipment.