Question

1. true or false? hot water is less dense than cold water.

base your answers to questions 18 through 19 on the information below and on your knowledge of science.
maple syrup production
new york state is one of the leading producers of maple syrup. this process begins with inserting a spout into a maple tree. sap (sugar water) flows into buckets for collection. the sap is then transferred into pans and heated to reduce the water content in sap to make the more concentrated maple syrup.
the photographs below show sap being collected in buckets and the sap being heated in three pans over a wood fire.
collection of sap
heating of sap

Explanation:

For liquid water between 0°C and 4°C, it becomes denser as it warms. But above 4°C, as water is heated further, its molecules move faster, spreading out and reducing the density. Since typical "hot water" is warmer than 4°C, it is less dense than cold water (that is at or below 4°C, the temperature range for denser liquid water).

Answer:

True