Question

a metal spoon and a plastic spoon at room temperature (25°c) are placed in a pot of boiling water (100°c).
a. fill the table: predict how the temperature of each spoon will change over time.

seconds	predicted temperature of metal spoon (°c)	predicted temperature of plastic spoon (°c)
5
10
15
20

b. create a labeled graph to show your predicted results for both spoons.

Explanation:

Part a: Filling the Table

To predict the temperature change, we use the concept of thermal conductivity: metals (like the spoon) are good conductors, so they heat up faster; plastics are insulators, so they heat up slower. Both start at 25°C (room temp) and approach 100°C (boiling water) over time.

Seconds	Predicted Temperature of Metal Spoon (°C)	Predicted Temperature of Plastic Spoon (°C)
5	60 (metal conducts heat quickly)	30 (plastic conducts heat slowly)
10	90 (closer to boiling)	45 (gradual increase)
15	98 (nearly boiling)	60 (slower rise)
20	100 (reaches boiling temp)	75 (still rising, but slower)

Part b: Creating the Labeled Graph

1. Axes:

• X - axis: Time (seconds) (0, 5, 10, 15, 20).
• Y - axis: Temperature (°C) (0 to 100, with intervals like 10 or 25).

1. Data Points & Lines:

• Metal Spoon: Plot points (0,25), (5,60), (10,90), (15,98), (20,100). Draw a line with a steeper slope (faster temperature increase).
• Plastic Spoon: Plot points (0,25), (5,30), (10,45), (15,60), (20,75). Draw a line with a shallower slope (slower temperature increase).

1. Labels:

• Title: “Temperature Change of Metal and Plastic Spoons in Boiling Water”.
• Legend: Label the two lines “Metal Spoon” and “Plastic Spoon”.
• Axes Labels: “Time (Seconds)” (x - axis) and “Temperature (°C)” (y - axis).

Final Answer (Table for Part a)

Seconds	Metal Spoon (°C)	Plastic Spoon (°C)
5	60	30
10	90	45
15	98	60
20	100	75

(For the graph, follow the instructions above to draw it on the grid provided.)

Answer:

Part a: Filling the Table

To predict the temperature change, we use the concept of thermal conductivity: metals (like the spoon) are good conductors, so they heat up faster; plastics are insulators, so they heat up slower. Both start at 25°C (room temp) and approach 100°C (boiling water) over time.

Seconds	Predicted Temperature of Metal Spoon (°C)	Predicted Temperature of Plastic Spoon (°C)
5	60 (metal conducts heat quickly)	30 (plastic conducts heat slowly)
10	90 (closer to boiling)	45 (gradual increase)
15	98 (nearly boiling)	60 (slower rise)
20	100 (reaches boiling temp)	75 (still rising, but slower)

Part b: Creating the Labeled Graph

1. Axes:

• X - axis: Time (seconds) (0, 5, 10, 15, 20).
• Y - axis: Temperature (°C) (0 to 100, with intervals like 10 or 25).

1. Data Points & Lines:

• Metal Spoon: Plot points (0,25), (5,60), (10,90), (15,98), (20,100). Draw a line with a steeper slope (faster temperature increase).
• Plastic Spoon: Plot points (0,25), (5,30), (10,45), (15,60), (20,75). Draw a line with a shallower slope (slower temperature increase).

1. Labels:

• Title: “Temperature Change of Metal and Plastic Spoons in Boiling Water”.
• Legend: Label the two lines “Metal Spoon” and “Plastic Spoon”.
• Axes Labels: “Time (Seconds)” (x - axis) and “Temperature (°C)” (y - axis).

Final Answer (Table for Part a)

Seconds	Metal Spoon (°C)	Plastic Spoon (°C)
5	60	30
10	90	45
15	98	60
20	100	75

(For the graph, follow the instructions above to draw it on the grid provided.)