What to do. 1  Mix small amount of each food sample with distilled water to make a test liquid. 2  To a test tube, add 40 drops of liquid to be tested. 3  If testing more than one liquid, label each test tube with a marker.  Add 10 drops of Benedict's solution to each test 1  tube. Note any color change.
Niagara Falls: Annual Weather Averages. July is the hottest month in Niagara Falls with an average temperature of 22Â°C (72Â°F) and the coldest is January at -4Â°C (25Â°F). Average Temperature: Niagara Falls.
Best Times to Visit Niagara Falls. The best time to visit Niagara Falls is June to August. Summer is peak season, and with good reason: Average highs are in the low 80s. Mists and breezes from the waterfalls can make the area feel cooler.