Questions:
- What happens to the thermometer as I continually add heat energy?
- What is happening to the water molecules as I continually add heat energy?
- What are the 3 phases of matter and how does that relate to the temperature?
- What temperature do different materials experience with each phase?
- How does phase of matter relate to density?
- Is it the same for every material?
Experimental Design:
- Get a beaker full of ice.
- Fill it with some water.
- Place a thermometer into the water.
- Record the temperature of the ice water for 0-3 minutes without any fire.
- Record your temperature every minute from 0 to 3 minutes.
- Start the fire, and continue recording til the very end.
- The ice will melt. So what. Keep recording. You're not finished.
- The water will eventually boil. So what. Keep recording. You're not finished.
- Let it boil for 8 minutes. Keep recording your temperature and time.
- After 8 minutes of boiling - stop recording. You're finished.
- Let the water cool down a bit, then pour it down the drain.
- Graph your results.
Results:
More on this lab.
Reflection:
Claim: Answer the questions
Evidence: Utilize the segments of data that will support your claims / answers.
Reasoning: Explain and justify your answer with the evidence you used.
Claim: Answer the questions
Evidence: Utilize the segments of data that will support your claims / answers.
Reasoning: Explain and justify your answer with the evidence you used.
Answers:
- What happens to the thermometer as I continually add heat energy?
- The temperature rises, but then plateaus when it starts to boil.
- What is happening to the water molecules as I continually add heat energy?
- As the water molecules increase in temperature, they are moving faster.
- As the water boils, the reason why it doesn't increase in temperature is because the heat energy is going into breaking the bonds between the water molecules.
- What are the 3 phases of matter and how does that relate to the temperature?
- Solid, liquid, gas.
- What temperature do different materials experience with each phase?
- It depends on the material substance.
- Water melts at 0 °C, and boils at 100 °C
- Coconut Oil melts at 24 °C and has a smoke point of 175 °C.
- Butter melts at 32-35 °C and has a smoke point of 200 °C.
- Iron melts at 1,538 °C and boils at 2,862 °C.
- It depends on the material substance.
- How does phase of matter relate to density, and Is it the same for every material?
- Some common substances and the results of solid and liquid interactions:
- Solid water (Ice) will float in liquid water.
- Solid coconut oil will sink in liquid coconut oil.
- Solid butter will sink in liquid butter.
- Solid honey will sink in liquid honey.
- Solid iron will sink in liquid iron.
- Solid corn syrup will sink in liquid corn syrup.
- The reason why the solid sinks in its own liquid version is because unlike water, the molecules in all solids are much more tightly packed together (more dense), and the liquid version is less packed together (less dense). *See the Phase Change Diagram below.
- Some common substances and the results of solid and liquid interactions: