Temperature Changes and Interpretations

The video tutorial explores how to represent temperatures above and below zero using a thermometer and a number line. It includes interactive scenarios where viewers practice calculating temperature changes using a digital applet. The tutorial explains the concept of positive and negative temperatures, emphasizing their representation on a number line and in real-world contexts.

What was the initial temperature shown on the thermometer in the morning?

• 12 degrees Celsius

• 7 degrees Celsius

• 5 degrees Celsius

• 10 degrees Celsius

How much did the temperature increase later in the morning?

• 3 degrees

• 2 degrees

• 5 degrees

• 4 degrees

What is the temperature after a 4-degree increase from 7 degrees Celsius?

• 9 degrees Celsius

• 10 degrees Celsius

• 11 degrees Celsius

• 12 degrees Celsius

What is the temperature at noon if it was 5 degrees Celsius and rose by 6 degrees?

• 11 degrees Celsius

• 10 degrees Celsius

• 12 degrees Celsius

• 9 degrees Celsius

If the temperature was 8 degrees Celsius at midnight and dropped by 12 degrees, what is the temperature at dawn?

• 8 degrees Celsius

• 4 degrees Celsius

• 0 degrees Celsius

• -4 degrees Celsius

What is the freezing temperature of saltwater if it starts at 0 degrees and is lowered by 7 degrees?

• 0 degrees Celsius

• 7 degrees Celsius

• 14 degrees Celsius

• -7 degrees Celsius

What is the temperature change if it starts at 8 degrees and drops by 12 degrees?

• -4 degrees Celsius

• 4 degrees Celsius

• 8 degrees Celsius

• 0 degrees Celsius

What is the result of adding salt to water in terms of freezing temperature?

• It makes the water boil

• It keeps the freezing temperature the same

• It lowers the freezing temperature

• It raises the freezing temperature

How do we represent a temperature that is below zero?

• With a division symbol

• With a plus symbol

• With a negative symbol

• With a multiplication symbol

What does a temperature above zero indicate?

• It is colder

• It is warmer

• It is freezing

• It is boiling