Everyday Science

Alexander Graham Bell is credited with inventing the telephone in 1876, making option D the correct answer. The other options are notable inventors but not related to the invention of the telephone.

Water exhibits a maximum density at approximately 4°C, which is a unique property among common substances. Ice, benzene, and chloroform do not have a density maximum at typical conditions.

Honey is primarily composed of sugars, with fructose being the major component, followed by glucose. This high fructose content gives honey its characteristic sweetness.

The mass of the Earth is approximately 5.972 × 10^24 kilograms, which is the widely accepted scientific value. The other options are incorrect values.

Pumice stone is a volcanic rock that contains many air pockets, making it less dense than water and allowing it to float. Other stones like limestone, basalt, and quartzite are denser and sink in water.

Meteorology is the scientific study of the atmosphere and weather processes, making it the correct term for the study of weather. The other options refer to different fields: Weatherology is not a recognized science, Ecology studies organisms and their environments, and Geology studies the Earth's physical structure and substances.

A stereoscope is an optical instrument used to view two slightly different images of the same object, creating a perception of three-dimensional depth. This allows us to see three-dimensional pictures, unlike a camera, binoculars, or an epidiascope.

Blood is composed of about 55% plasma, and plasma itself is approximately 90% water. Overall, blood contains roughly 75% water by volume, making option A the most accurate choice.

Pencils use graphite as the core material for writing because it leaves marks on paper and is easily erasable. Silicon, charcoal, and phosphorus are not used as the main material in pencils.

The Winter Solstice is the day with the longest night and shortest day of the year, marking the point when one hemisphere is tilted farthest from the sun.