In this video, we will see how to tell which temperature is hotter or colder, how to order from coldest to hottest, and how to read the temperature on a thermometer.

Loading video...

Examples

Example 2

What temperature is shown on the thermometer?

A thermometer with the red liquid up to 1 space below 10 degrees celsius. Each space represents 2 degrees.

Worked Solution

Create a strategy

Count each space mark from the red liquid level to 0 and use the scale on the thermometer.

Apply the idea

There are 5 spaces between 0\degree\text{C} and 10\degree\text{C}. This means that each space is 10 \div 5=2\degree\text{C} .

The red liquid level goes up to 4 spaces above 0.

The temperature shown is 4 \times 2\degree\text{C} = 8 \degree\text{C}

Example 3

Which of the following temperatures is in order from hottest to coldest?

35\degree, \, 39\degree, \, 38\degree

39\degree, \, 38\degree, \, 35\degree

Worked Solution

Create a strategy

Order the numbers from largest to smallest.

Apply the idea

Warmer temperatures are higher number values than cooler temperatures. We need to order the number value of temperature from largest to smallest as shown:39, \, 38, \, 35

The correct answer is option B.

Idea summary

Temperature is used to measure how hot or cold something is, the colder it is the lower the degrees Celsius.

Outcomes

AC9M4M01

interpret unmarked and partial units when measuring and comparing attributes of length, mass, capacity, duration and temperature, using scaled and digital instruments and appropriate units

9.10 Measure, estimate, order and compare temperature

Ideas

Are you ready?

Examples

Example 1

Temperature

Examples

Example 2

Example 3

Outcomes

AC9M4M01

What is Mathspace

About Mathspace