Celsius Temperature Scale Concepts

This lesson introduces the Celsius temperature scale, also known as the centigrade scale, invented by Anders Celsius in 1742. It explains the scale's two defined points: the freezing point of water at 0°C and the boiling point at 100°C. The lesson compares the Celsius scale with the Fahrenheit scale, highlighting differences in boiling and freezing points. It also touches on absolute zero and the temperature of dry ice. The lesson concludes with a preview of the next topic, the Kelvin scale.

Who invented the Celsius temperature scale?

• Albert Einstein

• Isaac Newton

• Anders Celsius

• Galileo Galilei

Why is the Celsius scale sometimes referred to as the centigrade scale?

• Because it was invented in the 18th century

• Due to its use in scientific research

• Because it is used worldwide

• Because of the 100-degree interval between its defined points

What is the freezing point of water on the Celsius scale?

• 32 degrees Celsius

• 212 degrees Celsius

• 0 degrees Celsius

• 100 degrees Celsius

What is the boiling point of water on the Celsius scale?

• 32 degrees Celsius

• 0 degrees Celsius

• 100 degrees Celsius

• 212 degrees Celsius

What is the symbol used to denote degrees in the Celsius scale?

• °C

• K

• °F

• °R

At what temperature does water freeze on the Fahrenheit scale?

• 100 degrees Fahrenheit

• 212 degrees Fahrenheit

• 32 degrees Fahrenheit

• 0 degrees Fahrenheit

What is the room temperature in degrees Celsius?

• 72 degrees Celsius

• 100 degrees Celsius

• 22 degrees Celsius

• 0 degrees Celsius

Which scale has a boiling point of water at 212 degrees?

• Fahrenheit

• Kelvin

• Celsius

• Rankine

What is the absolute zero temperature in degrees Celsius?

• -100 degrees Celsius

• -273 degrees Celsius

• 0 degrees Celsius

• -270 degrees Celsius

What temperature is dry ice (solid carbon dioxide) on the Celsius scale?

• 0 degrees Celsius

• 100 degrees Celsius

• -78 degrees Celsius

• 32 degrees Celsius