In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.
--------
Question: Question: Noah compares the density of the water in a pond during a hot July day and a cold winter morning. The water on the July day is 
 Answer: less dense.

Answer: Lower temperature and higher salinity yield the densest water.


Question: Question: Dell added lots of silica to her magma project. The magma will be _____ in color. 
 Answer: lighter

Answer: Magmas that produce lighter colored minerals are higher in silica.


Question: Question: Compared to sound waves travelling through a cup of boiling water, would sound waves travelling through a cup of ice water move 
 Answer: slower

Answer:
For a given medium, sound waves travel more slowly at lower temperatures.