Here are some Critical Thinking questions I need help answering: 1. Identify an object in your house that contains a physical system and list three questions you could use to define the system.

2. Use the law of thermodynamics to explain why an ice cube melts in a cup of hot tea.

3. The unit states that systems are not only part of engineering, but also other parts of society, such as financial systems, political systems, etc. Could using systems thinking be helpful for these kinds of systems as well? Explain your answer.

4. Why do you think that engineering students are encouraged to think about uses for technology beyond entertaining society?

5. Create a short poem or haiku (a poem with 5 syllables in the first line, 7 syllables in the second, and 5 in the third) to explain a problem you are currently trying to solve. Do not use more than 20 words to express the problem.