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Science & Nature 117097 is a selection of 10 questions. Science & Nature 117097 is the filename to differentiate it from other Science & Nature quizzes. Feel free to use any of these questions and answers for your own quizzes. Just keep in mind that you cannot republish them in any format.
1 What name is given to the largest side of a right-angled triangle?
A The hypotenuse. It’s always opposite the right angle, making it the longest side of the triangle.
2 What is the better-known name of the plant “Atropa Belladonna”?
A Deadly Nightshade, possibly one of the most famous dangerous plants. It has a long and twisted history of various medicinal, murderous, and cosmetic uses and sometimes plays quite sinister roles in folklore and legends.
3 Which compound is responsible for the ‘furring’ on the inside of a kettle?
A Calcium carbonate (CaCO3), a key component of limescale. Furring in kettles occurs due to the presence of hard water minerals, primarily calcium and magnesium. The reaction between these minerals and carbonate ions in the water forms insoluble calcium carbonate and magnesium carbonate.
4 What name is given to the technique of using substances such as silver iodide to make rainfall?
A Cloud Seeding, a weather modification technique that improves a cloud’s ability to produce rain or snow by introducing tiny ice nuclei into certain types of subfreezing clouds. These nuclei provide a base for snowflakes to form. After cloud seeding takes place, the newly formed snowflakes quickly grow and fall from the clouds back to the surface of the Earth, increasing snowpack and streamflow.
5 What is the process where light bends when passing through materials of differing densities?
A Refraction. The phenomenon occurs because light waves change speed when they transition between materials of varying densities, causing them to change direction.
6 Where in the human body is the hippocampus?
A Brain, specifically within the temporal lobe. The main function of the hippocampus is to facilitate learning and memory, particularly the formation of new, declarative memories and the transfer of short-term memories to long-term storage.
7 What name is given to a star that explodes in a colossal event after growing to a massive size?
A Supernova. The explosion of a supernova leaves behind a remnant, which can be a neutron star, a black hole, or a nebula, depending on the original star’s mass.
8 Which common weak acid has the chemical formula CH3COOH?
A Acetic acid, also known as ethanoic acid. It’s a key component of vinegar and is a widely studied example of a weak acid in chemistry.
9 How many ribs does a normal human have?
A 24 ribs, with 12 on each side of the body. This number is the same for both men and women.
10 In which year did the last human walk on the Moon?
A 1972, Apollo 17, the last human to walk on the Moon was Eugene Cernan on 14th December, 1972.