How popsicles are made?

What is the best definition of physical science? the study of the environment and interaction between living things | the study

Aliun [14]

Answer:

The study of matter and energy, and the relationship between matter and energy

Explanation:

Physical science is natural science studies( in chemistry, geology, physics,astronomy) that focus on non-living materials and natural forces.The non-living systems are mainly the inorganic world.Here the properties of matter and energy in non-living forms are investigated with their connection with nature.

8 0

4 years ago

1. Which best describes why it is important for a scientist to use the metric system when recording data?

hoa [83]

<h3>1.<u> Answer;</u></h3>

A. so the data can be proven in the scientist’s next experiment

<h3><u>Explanation; </u></h3>

<em><u>Metric system is the standard or primary system that is accepted and used in science all over the world</u></em>.
<em><u>Metric system is utilized all over the word thus making it possible for scientists</u></em> to be in a position to share data verify and ascertain that the results presented by other scientists and the methods used.

<h3>2. <u>Answer;</u></h3>

A. resistance to change

<h3><u>Explanation;</u></h3>

<u><em>Pseudoscience involves a system of theories and assertions concerning the nature which appear to be scientific but in real sense they are not.</em></u> For example, astrology is viewed as pseudoscience.
Pseudoscience is characterized by; contradictory, exaggerated or unfalsifiable claims, lack of openness to evaluation by other experts, reliance on confirmation bias, etc.

<h3>3. <u>Answer;</u></h3>

A. Observable and objective

<h3><u>Explanation;</u></h3>

Scientific facts should be verifiable such that they should rest upon sense data, they should be based on evidence that is verifiable.

<em><u>Scientific facts should be open to further investigation, that is they should be falsifiable and repeatable. Also they should observable and objective</u></em>. They should open to further investigations and also flexible in case new facts emerge they can be changed.

<h3>4. <u>Answer;</u></h3>

D. Ethics

<h3><u>Explanation;</u></h3>

Since research involves humans participants and also human subjects, it involves complex and specific ethical, legal social and political notions.
<em><u>Ethics in research entails the evaluation of ethical issues that are raised when human beings as involved as participants or subjects in research</u></em>
<em><u>The major problem with the testing of the Ebola vaccines will be the recruitment of people who are going to volunteer to have the Ebola virus inserted into their system </u></em>so that the potency of the vaccines can be tested. A lot of ethical challenges surround this.

<h3>5. <u>Answer;</u></h3>

Pseudoscience is often based only on opinions.
Pseudoscience often involves explanations of beliefs.

Pseudoscience includes subjective ideas.

<h3><u>Explanation;</u></h3>

<u><em>Pseudoscience involves a system of theories and assertions concerning the nature which appear to be scientific but in real sense they are not.</em></u>

<em>Pseudoscience is </em>characterized by; contradictory, exaggerated or unfalsifiable claims, lack of openness to evaluation by other experts, reliance on confirmation bias, etc.

<h3>6.<u> Answer;</u></h3>

A objective

Science does not rely <em><u>objective </u></em>on ideas based on opinions instead of facts because science works to avoid the influence of opinions and beliefs.

<h3><u>Explanation;</u></h3>

<em><u>Science knowledge is objective which means the ability to observe and accept facts as they are, and not as individuals would want them to be. </u></em>
<u><em>Objectivity entails the ability to guard science knowledge against their own biases, wishes, values, beliefs and preferences. </em></u>

<h3>7. <u>Answer;</u></h3>

A. Process and facts, because they are using a systematic method to measure and then record data

<h3><u>Explanation;</u></h3>

<em><u>Scientists and researchers use scientific investigation to answer questions about the daily occurrence of certain events about the world. It also entails communicating the outcome or results to the individuals around the world.</u></em>
<em><u>Scientific investigation may be descriptive, comparative or experimental investigation.</u></em>

<h3>8. <u>Answer;</u></h3>

B. Scientific, because observations of brain growth and chemicals are made carefully and repeatedly

<h3><u>Explanation;</u></h3>

<em><u>A claim refers to a statement or a conclusion that intend to answer the original problem or question. </u></em>

The claims are scientific because they are falsifiable, repeatable and reproducible, which means just like scientific experiments they can be proved.

<h3>9. <u>Answer;</u></h3>

B. There are probably very few astronauts with twin siblings.

<h3><u>Explanation;</u></h3>

<em><u>All scientific experiments should follow certain principles of proper investigation in order for the results obtained at the end of the experiment to be considered credible.</u></em>

<em><u>A well designed scientific experiment should have features that allow scientists to eliminate extraneous variables as an explanation for the relationship observed between dependent variable and independent variables.</u></em>

4 0

3 years ago

Read 2 more answers

Numerical problems:

Hatshy [7]

Answer:

this is answer please mark me as brainlest

Explanation:

A force of 500N acts on the area of 2.5m2; calculate the pressure

exerted,

(Ans: 200 Pa]

b. Calculate the force applied when 400 Pa of pressure is exerted by a box

of surface area 2m2.

(Ans: 800 N]

The weight of a stone is 1400N. If it exerts a pressure of 700 Pa, calculate

the area.

(Ans: 2m]

d. A force of 2000 N acts on 5m² surface area. Calculate the pressure

exerted.

(Ans: 400 Pa]

c.

7 0

3 years ago

A total electric charge of 2.00 nC is distributed uniformly over the surface of a metal sphere with a radius of 26.0 cm . The po

IrinaVladis [17]

Answer:

a) 40 V

b) 69.23 V

c) 69.23 V

Explanation:

See attachment for solution

7 0

3 years ago

I

Rasek [7]

When conducting a search to identify a text's credibility and reliability, you have to check the following characteristics:

Sources: where the information is obtained and it is supposed to be true. It is said that you need at least three different sources that explain the same information for it to be validated.

Is the article is current?: articles could change all the time, specially scientific ones because new discoveries can change what was discovered before, so it is important to check if the text you are reading is current or not, and if it is not, you need to check if something has changed during all those years.

<h3>Article's credibility</h3>

In this exercise, you have to present an article and describe the purpose of the source and if the article is current or not.

For example, let's select an article called "How using social media affects teenagers".

The purpose of the sources in this article is to demonstrate how social media affects teenagers using different surveys.

Check more information about sources here brainly.com/question/24708478

6 0

3 years ago