Question
Introduction
For this lab activity, you will observe two scenarios — The Iced Tea Debate and Salty Soup — and record your observations of physical and chemical change. During your observations, you will determine how each scenario represents the laws of conservation of matter and energy.
Problem:
How can matter and energy be described and conserved in a variety of systems?
Hypotheses:
As you view each scenario, make a prediction about what will occur when prompted by the video.
The Iced Tea Debate:
If the temperature of the iced tea__________________, then the iced tea ___________________________.
The Salty Soup:
Hypothesis 1: What will happen to the soup as it is heated on the burner?
If the temperature of the soup_________________, causing the soup to boil, then ___________________________.
Hypothesis 2: 2nd pause in the video.
If the soup is salty __________________________________________, then ___________________________ will make the soup less salty.
Materials:
Demonstrations: “The Iced Tea Debate” and “The Salty Soup.”
Procedures:
Observe and analyze the following video demonstrations: “The Iced Tea Debate” and “The Salty Soup.”
Use the data table to record observations on physical and chemical change, and the conservation of matter and energy.
For this lab activity, you will observe two scenarios — The Iced Tea Debate and Salty Soup — and record your observations of physical and chemical change. During your observations, you will determine how each scenario represents the laws of conservation of matter and energy.
Problem:
How can matter and energy be described and conserved in a variety of systems?
Hypotheses:
As you view each scenario, make a prediction about what will occur when prompted by the video.
The Iced Tea Debate:
If the temperature of the iced tea__________________, then the iced tea ___________________________.
The Salty Soup:
Hypothesis 1: What will happen to the soup as it is heated on the burner?
If the temperature of the soup_________________, causing the soup to boil, then ___________________________.
Hypothesis 2: 2nd pause in the video.
If the soup is salty __________________________________________, then ___________________________ will make the soup less salty.
Materials:
Demonstrations: “The Iced Tea Debate” and “The Salty Soup.”
Procedures:
Observe and analyze the following video demonstrations: “The Iced Tea Debate” and “The Salty Soup.”
Use the data table to record observations on physical and chemical change, and the conservation of matter and energy.
Answers
Answer
Thankyou!
Answered by
GPT 3.5
Data Table:
Scenario: The Iced Tea Debate
Observations:
- When the ice is added to the hot tea, it starts to melt.
- As the ice melts, the tea becomes cooler.
- There is a physical change as the ice melts into water.
- The tea's temperature decreases, representing the conservation of energy.
- The total mass of the tea and ice remains the same, representing the conservation of matter.
Scenario: The Salty Soup
Observations:
Hypothesis 1:
- As the soup is heated on the burner, it starts to boil.
- The liquid in the soup evaporates and turns into steam.
- There is a physical change as the liquid changes into gas.
- The temperature of the soup increases, representing the conservation of energy.
- The total mass of the soup remains the same, representing the conservation of matter.
Hypothesis 2:
- If the soup is salty, adding water will dilute the salt concentration.
- Mixing water with the soup will decrease the saltiness.
- There is a chemical change as the water reacts with the salt to form a less concentrated solution.
- The total mass of the soup and water remains the same, representing the conservation of matter.
- The saltiness of the soup decreases, representing the conservation of energy.
Scenario: The Iced Tea Debate
Observations:
- When the ice is added to the hot tea, it starts to melt.
- As the ice melts, the tea becomes cooler.
- There is a physical change as the ice melts into water.
- The tea's temperature decreases, representing the conservation of energy.
- The total mass of the tea and ice remains the same, representing the conservation of matter.
Scenario: The Salty Soup
Observations:
Hypothesis 1:
- As the soup is heated on the burner, it starts to boil.
- The liquid in the soup evaporates and turns into steam.
- There is a physical change as the liquid changes into gas.
- The temperature of the soup increases, representing the conservation of energy.
- The total mass of the soup remains the same, representing the conservation of matter.
Hypothesis 2:
- If the soup is salty, adding water will dilute the salt concentration.
- Mixing water with the soup will decrease the saltiness.
- There is a chemical change as the water reacts with the salt to form a less concentrated solution.
- The total mass of the soup and water remains the same, representing the conservation of matter.
- The saltiness of the soup decreases, representing the conservation of energy.
Answered by
GPT 3.5
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