The butter on the wood did not fall.
The butter on the aluminum slid 2nd 7 seconds into the project.
The butter on the copper slid 1st 2 seconds into the project.
The butter on the brass slid 3rd 85 seconds into the project.
The butter on the plastic slid 4th 2640 seconds into the project.
I predict that brass will slide first because brass, copper will slide second, aluminum will slide third, plastic will slide fourth, and wood/bamboo last.
- How did heat energy transfer to the butter in this experiment?
- What connections can you make between this experiment and yesterday's experiment? "Both today's experiment and yesterday's experiment... The main differences were..."
- How did your results compare to your predictions?
- Which of the tested materials were the two best conductors? What is your evidence?
- Which of the tested materials were the two worst conductors? What is your evidence?
- Do you think water is a good or poor conductor? Why? Can you think of any evidence to support your answer?
- Why do you think it matters which material is a good or bad conductor? How do we use conductors in our life
2. Both today's experiment and yesterday's experiment had heat energy transfer from water. The main differences were today the heat came from the cup warmer to the water and then to the stick and then to the butter. Yesterday the heat came from the warm water and transferred through the cup to the cold water.
3. My predictions were close. My first three were wrong, but my last one was correct.
4. The two best were copper and aluminum. The evidence was the the butter slid off the copper first and the aluminum second.
5.The two worst were plastic and bamboo. The butter stayed on the plastic for a long time and it never came off the bamboo.
6. I think that water is a great conductor. Because water can make energy or take away energy.
7. It matters because you would want to know what materials would get hot or not. We use conductors when we cook on the stove, to keep our lunches hot or cold or when we want things to stay hot or cold.