Final answer:
The three steps to follow when using the ice-point method are explained. Step 3 involves thinking about the results obtained and the importance of the freezing point of water decreasing.
Step-by-step explanation:
The three steps to follow when using the ice-point method are:
- Place some ice in a beaker and measure the temperature of the ice. Record the temperature.
- After 1 minute, measure the temperature again and record it. Repeat every minute until at least 3 minutes after the ice has melted.
- Heat some water in a beaker until it boils. Measure and record the temperature of the water.
- Remove the water from the heat and measure the temperature every 1 minute until the beaker is cool to touch.
Step 3 involves thinking about the results obtained. The freezing point of water is observed to decrease by a large amount. This is important as it protects the radiator from damage due to water expansion when it freezes.