413 Best Science Questions and Answers (Q&A) - ProProfs Discuss

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What does an atom become when it gains an electron and why does it happen?

H.Jennifer
Answered: Apr 23, 2018

An atom that gains a negative electron, it becomes a negative ion. If it loses an electron it becomes a positive ion. Some atoms lose electrons and become positive ions. Others gain electrons and...Read More

3 Answers

2860 views

How much atmospheric pressure can the human body take?

H. Barnes, Unemployed
Answered: Jan 12, 2021

Humans survive a range of atmospheric pressures. Provided there is pure oxygen available, a human can still breathe in around 12.2 % sea level air pressure. At the other extreme, the normal...Read More

6 Answers

2848 views

What is the scientific name of corn?

Matz Lewis Clark, College student
Answered: Dec 12, 2018

The scientific name of corn is “Zea mays”. Corn belongs to the:
Kingdom: Plantae, Division: Magnoliophyta, Class: Liliopsida, Order: Poales, Family: Poaceae, Genus: Zea and the...Read More

8 Answers

2459 views

What is the study of stars called?

E. Dixon
Answered: Sep 30, 2020

The correct answer to this question is astronomy. This field of study was discovered by Nicolaus Copernicus. Astronomy combines a number of other subjects, including chemistry, math, and physics....Read More

9 Answers

2005 views

Which instrument is used to measure temperature?

L. Brett, Sales Manager
Answered: Jan 26, 2021

The instrument used for measuring temperature is a thermometer. Temperature generally can be defined as the state or degree of heat or coldness within a substance which can be measured. The...Read More

8 Answers

1931 views

How do you separate iron filings from talc powder?

H. Barnes, Unemployed
Answered: Jan 12, 2021

The best way to separate iron filings from talc powder is by using a magnet. This idea or separation technique is very simple because by moving a magnet over a mixture of iron filings and talc...Read More

7 Answers

1767 views

What are the seven life processes?

B. Mary, Health Care manager
Answered: Jan 18, 2021

There are seven life processes, including movement, as both animals and plants must have the ability to move. Respiration is the process of acquiring energy from the foods we eat. Respiration is...Read More

6 Answers

1723 views

Which season you will see a rainbow more often?

D. Ronald, Writer
Answered: Feb 11, 2019

In different parts of the world, the seasons are different. People all over the world experience different types of weather even though they may be in the same season. For instance, people in...Read More

2 Answers

1497 views

What is the amount of matter in an object?

H. Barnes, Unemployed
Answered: Jan 12, 2021

The amount of matter in an object is known as mass. In physics, the term mass refers to the quantity of matter which a body contains regardless of its volume. While the basic SI unit for...Read More

6 Answers

1430 views

What is the correct order of the following sequence (rabbit, fox, carrots, fungi) in a food chain?

Drhanah
Answered: Jan 09, 2025

Carrot, rabbit, fox, fungi

1 Answer

1368 views

Did Galileo get murdered by the Roman Catholic church for his scientific explanations?

D.Anthonyda
Answered: Feb 08, 2018

Galileo Galilei was born in February of 1564 and he died in January of 1642. He is best known for his scientific ideas, theories and inventions. These included his theory on tides and the theory...Read More

7 Answers

1359 views

What is the difference between reproductive and therapeutic cloning?

M. Klose, Content Writer
Answered: Nov 06, 2018

Cloning is a scientific term that has been around for several years. It began when a sheep was cloned. This meant that an identical replica of the first sheep was produced by using the cells from...Read More

3 Answers

1345 views

What is the farthest planet from the sun?

T. ADAMS, Senior Executive
Answered: Sep 18, 2019

The correct answer to this question is Neptune. There are eight planets, and Neptune is the furthest away. It is a gas giant. Experts believe that before it's current position, Neptune was...Read More

4 Answers

1275 views

What is the correct sequence of the levels of organization?

D. Smith, Musician
Answered: Jan 13, 2021

The answer is cell, tissue, organ, system, and organism. The term cell refers to the basic unit of all living things. In other words, all living things are made up of cells, just as an atom is...Read More

8 Answers

1256 views

Which mirror shows lateral inversion of light?

A. Cook, English Professor
Answered: Jan 02, 2019

The correct answer is plane mirror.
Plane mirror shows lateral inversion of light. Lateral inversion refers to the image seen which is inverted in terms of left and right. The left part of...Read More

2 Answers

1231 views

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