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

When an astronaut hold a balloon and a baseball on the moon and drops them at the same time. What would the astronaut observe?

Alexislovesubaby
Answered: Apr 20, 2024

They fall at the same time
The baseball and balloon fall at the same rate
The baseball and balloon fall at the same time

1 Answer

419 views

What unit would be best for describing the volume of mercury used in an experiment?

C.Charlotte
Answered: Feb 05, 2020

The answer to this question is liters (l) or milliliters (ml). Ml is normally used to show the value of the liquid that is in small quantities. There are some experiments that would only require...Read More

3 Answers

418 views

Do green stems participate in photosynthesis?

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

The truth is that green leaves play important roles during photosynthesis, but this does not mean that other parts of the plant do not take part in this process. What this means is that all parts...Read More

5 Answers

416 views

Who is known as the father of science?

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

Galileo Galilee is often considered the father of science. He was an Italian mathematician, astronomer, and physicist. He was famous for his huge contributions to the field of physics,...Read More

6 Answers

412 views

How do the lens expand and contract itself when we see far or near object?

M. Parker, Internet Researcher
Answered: Oct 10, 2018

This is all because of the ciliary muscle. This is the type of muscle that you can find in the middle of your eye. This will allow people to view different objects in a more precise manner. Like...Read More

4 Answers

411 views

What has the least energetic molecules?

K. Myers, Blogger
Answered: Jan 28, 2021

Solids have the least energetic ratio. Every particle has its own energy, but there are differences in the level of energy depending on the temperature in which the particle is in. In turn, this...Read More

8 Answers

402 views

How does space travel affect the human body?

D.Anthonyda
Answered: Feb 08, 2018

Space travel causes problems on the human body. Since there is not any gravity in space plus other changes in temperature and pressures, this could take its effect on the human body. The most...Read More

4 Answers

402 views

What are bodies that radiate light called?

Alas kajim
Answered: Apr 20, 2024

Luminous

1 Answer

402 views

Is it possible to live forever?

D.Anthonyda
Answered: Feb 08, 2018

There are many people who live for many years. The oldest people today may live to be 110 or 120 years old. There are movies that have been made where people live forever. At this point, there is...Read More

8 Answers

401 views

Which is an example of a semiconductor?

Barry Mclean, Sales Manager
Answered: Jun 10, 2019

A semiconductor is just one the word sounds like it is something that conducts electricity that sits between a conductor and an insulator in a piece of equipment. An excellent example of a...Read More

3 Answers

391 views

How does the cornea get oxygen without blood vessels?

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

It is amazing that there is no blood vessel in the cornea, and yet it still gets the needed oxygen. The absence of blood vessels in the cornea allows it to be transparent so that light can easily...Read More

5 Answers

386 views

What angle has a measure of 128 degrees?

Grace
Answered: Apr 20, 2024

Obtuse

1 Answer

383 views

What is not an allotrope of carbon?

Alas kajim
Answered: Apr 20, 2024

Silk

1 Answer

382 views

How was Tsar Bomba made?

S. Hughes
Answered: Jan 29, 2021

The Tsar Bomba is just another name for the most powerful and biggest thermonuclear bomb ever constructed, the RDS-220 hydrogen bomb. Tsar Bomba was developed by some nuclear physicists in USSR....Read More

5 Answers

381 views

How has the role of catastrophism in Earth science changed?

Brycequach
Answered: Apr 20, 2024

When philosopher and scientist James Hutton first came up with the theory of uniformitarianism in 1795 in his book The Theory of Earth, it was not imediately accepted. However another scientist,...Read More

1 Answer

380 views

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