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

What force do people feel when two plates jerk into a new position?

K. Myers, Blogger
Answered: Jan 28, 2021

The force that people feel when two plates jerk into a new position is the earthquake. An earthquake, which is also referred to as tremor, quake, or temblor, is an act whereby the surface of the...Read More

8 Answers

468 views

What is the salt that absorbs water called?

K. Myers, Blogger
Answered: Jan 28, 2021

The salt that absorbs water is referred to as hygroscopic. A good example of such a kind of salt is calcium chloride, with a chemical formula of CaCl2. Hygroscopy, generally, is a term that is...Read More

8 Answers

465 views

Where will the humans go if the earth where to be struck by an ELE (extinction-level event)?

D.Anthonyda
Answered: Feb 08, 2018

It would not be very easy to completely destroyed the Earth, but there is always a chance that that could happen. Humans may be forced to leave the Earth. However, people may wonder where would...Read More

8 Answers

465 views

What would reflect light rather than refract light?

K. Myers, Blogger
Answered: Jan 28, 2021

The object that would reflect light rather than refract it is the mirror. The surface of a mirror is well known to reflect light more perfectly compared to any ordinary object. Most objects only...Read More

8 Answers

459 views

What are the oldest, most widely cultivated and used nuts in the world?

K. Myers, Blogger
Answered: Jan 28, 2021

The oldest, most widely cultivated and used nuts in the world are almonds. The almond is a species of tree that is known to be sourced from Iran and neighboring countries. This plant is not just...Read More

4 Answers

458 views

Which statement provides the best evidence that the Earth has a nearly spherical shape?

K. Myers, Blogger
Answered: Jan 28, 2021

The statement that provides the best evidence that the Earth has a nearly spherical shape is that the altitude of Polaris (North Star) depends on the latitude of the observer. In other words, the...Read More

4 Answers

448 views

What is the physical dimension for pitch?

R. Jones, Student
Answered: Jan 28, 2021

The physical dimension for pitch is based on the number of players that would be playing on that pitch. Also, there is not really a fixed measurement that a pitch must-have, just that there are...Read More

9 Answers

447 views

What is the volume of water shown in the graduated cylinder?

Grichert
Answered: Apr 20, 2024

21.5 mL

1 Answer

442 views

What is the phenomenon parallax?

S. Hughes
Answered: Jan 28, 2021

Parallax refers to the apparent shift or change in the position of an object as seen by an observer from two different positions. In other words, when you view an object from two different places...Read More

4 Answers

437 views

How does the Hubble Space Telescope work?

E. Dixon
Answered: Jan 29, 2021

Hubble is a type of telescope known as Cassegrain reflector. Light hits the telescope’s main mirror, or primary mirror. It jumps off the primary mirror and meets a secondary mirror. The...Read More

4 Answers

437 views

Why is earth like an avocado?

L. Gibson, Science Professor
Answered: Jan 28, 2021

When you see anybody using avocado to represent the Earth, it is simply because the layers of avocado give a perfect explanation of the layers of the Earth. We use avocado to represent the entire...Read More

5 Answers

434 views

How do normal molecules look under a microscope?

L. Gibson, Science Professor
Answered: Jan 28, 2021

To answer this question correctly, we need to be specific about the types of molecules being viewed. The reason is that while some molecules can be observed when they are viewed with microscopes,...Read More

5 Answers

429 views

What does Bernoulli's theorem have to do with aeroplanes?

S. Hughes
Answered: Jan 28, 2021

Bernoulli's theorem helps us understand how it is possible for an airplane, an object heavier than air, to achieve lift. Bernoulli used the term "air pressure" to explain how airplanes fly....Read More

5 Answers

425 views

What type of example is this: "If it is cold outside, then the boy will wear his blue jacket"?

John Adney
Answered: Jul 05, 2017

I chose prediction because it is a specific prediction of an event or outcome (even predicting the color of jacket that will be worn). To me a better hypothesis would have been "Boys will wear a...Read More

4 Answers

424 views

Who made physical change and chemical change?

L. Gibson, Science Professor
Answered: Jan 28, 2021

The person who discovered physical and chemical change was Josiah Willard Gibbs. He was born on 11, 1839, and contributed immensely to science, especially the theoretical aspect of mathematics,...Read More

4 Answers

421 views

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