Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 5 | Science
One Answer Below
Anyone can contribute an answer, even non-tutors.
Why is the answer 1?
Date Posted: 2 years ago
Views: 450
See 1 Answer
Water has a boiling point of 100°c and a freezing point of 0°c.
Liquid A's boiling point (120°c) is above 100°c, and its freezing point (-90°c) is below 0°c. Hence it is able to measure both the boiling and freezing points of water as they are within the range (-90°c to 120°c) at which A remains a liquid.
The rest of the Liquids B, C and D all have one value (either the boiling point or the freezing point) which is out of range from the boiling point or freezing point of water. Hence they are not suitable for the thermometer.
Liquid A's boiling point (120°c) is above 100°c, and its freezing point (-90°c) is below 0°c. Hence it is able to measure both the boiling and freezing points of water as they are within the range (-90°c to 120°c) at which A remains a liquid.
The rest of the Liquids B, C and D all have one value (either the boiling point or the freezing point) which is out of range from the boiling point or freezing point of water. Hence they are not suitable for the thermometer.
360 Tutoring Program