Arnold K H Tan's answer to Bettie's Primary 5 Maths question.

done {{ upvoteCount }} Upvotes
clear {{ downvoteCount * -1 }} Downvotes
Arnold K H Tan
Arnold K H Tan's answer
2124 answers (A Helpful Person)
1st
Draw a simple number line to see that any temperature below 10 degrees Celsius, the substance solid, 10 to 85 deg C a liquid and above 85 deg C a gas.