Preview

Question 1

Chemistry is the branch of science that studies _____- what it is and how it ____

Answer 1

Matter, changes

Question 2

What is matter?

Answer 2

Anything that occupies space and has mass

Question 3

Everything you ….(list 5) involves chemistry and chemical, which are all ____. Chemistry investigates the properties of _____; how they ____ and how they _____.

Answer 3

See, touch, hear, smell, and taste, matter, matter, interact, change

Question 4

What are the steps of chemistry? (Ex: meat->mashing->grilling->hamburger😋)

Answer 4

Matter->applying force->changing temp->a new substance

Question 5

What are the five main branches of chemistry?

Answer 5

Organic chemistry, inorganic chemistry, biochemistry, physical chemistry, nuclear chemistry

Question 6

What does discipline mean?

Answer 6

Branches

Question 7

The study of carbon-containing compounds in both living and nonliving things

Answer 7

Organic Chemistry

Question 8

The study of everything except carbon-based compounds

Answer 8

Inorganic chemistry

Question 9

The study of chemical processes that happen inside living things

Answer 9

Biochemistry

Question 10

The study of chemical systems as they apply to physics concepts

Answer 10

Physical chemistry

Question 11

The study of chemical changes in the nuclear (center) of an atom

Answer 11

Nuclear chemistry

Question 12

What is the smallest unit of matter?

Answer 12

Atom

Question 13

The process of using evidence from observation and experiments to create an explanation

Answer 13

Scientific inquiry

Question 14

Scientists use a step-by-step method to answer a question. This provides scientists with a systematic way to check their work and the work of others

Answer 14

Scientific method

Question 15

Scientific inquiry begins with a ____ or a problem. Scientists tries to collect all possible information that relates to the investigation of that question by doing background research, making ____, and conducting _____.

Answer 15

Question, observations, experiments

Question 16

Quantitative

Answer 16

Made in the form of measurement

Question 17

Qualitative

Answer 17

Describing color, odor, shape , and other physical characteristics

Question 18

The findings of a scientific inquiry are called _____

Answer 18

Results

Question 19

What does background research involve?

Answer 19

Reviewing the findings of past scientists to create a hypothesis-> a possible explanation for the observations

Question 20

Scientist test their hypotheses by making _____ and comparing them to their _____.

Answer 20

Observation, prediction

Question 21

Observations can require the way something ___, smells, ____, or sounds.

Answer 21

Looks, feels

Question 22

Observation can be ….(list 2)

Answer 22

Quantitative, qualitative

Question 23

Scientific Inquiry vs Scientific Method
(Determine which it is)
1. Results must be communicated
2. No fixed order
3. Answers one question
4. Answers multiple questions
5. A step-by-step process done

Answer 23

1. Scientific Method 2. Scientific Inquiry 3. Scientific Method 4. Scientific Inquiry 5. Scientific Method

Question 24

What is pure science?

Answer 24

The search for knowledge or facts. It uses theories and predictions to understand nature. Geology is an example of pure science.

Question 25

What is applied science?

Answer 25

Using knowledge in a practical way. Related to engineering and technology. The development of a rocket is an example of applied science.

Question 26

What model is this? Something that can be built such as a molecule that is made of marshmallows, gumdrops, and sticks

Answer 26

Physical model

Question 27

What model is this? A three-dimensional simulation of a moving object or a chemical reaction

Answer 27

Computer model

Question 28

Calculations involving a particular mathematical equation; for example an equation of a line

Answer 28

Mathematical model

Question 29

Once a hypothesis has been proven through tests and experiments, scientists will develop a ____

Answer 29

Theory

Question 30

What is a theory?

Answer 30

A proposed explanation that is based on an examination of facts. (Facts can be observed and measured.) A theory is a scientist’s explanation of the facts.

Question 31

Theories can be ___ or rejected. They can also be changed and improved as more ___ are gathered through _____ or modeling. Theories are the basis for ____ knowledge. They are a way to take collected facts and put them to _____ use.

Answer 31

Changed, facts, experimentation, scientific, practical

Question 32

a testable, tentative explanation for an observation Purpose: It serves as a starting point for investigation and is designed to be tested through experiments or observations.

Answer 32

Hypothesis

Question 33

a well-substantiated explanation of an aspect of the natural world, supported by extensive evidence and repeated testing Purpose: To aim to explain a wide range of phenomena and provide a framework for understanding the natural world.

Answer 33

Theory

Question 34

So in result can a hypothesis become a theory?

Answer 34

Yes a hypothesis can indeed become a theory, but only after extensive testing, evaluation by the scientific community, and strong supporting evidence.

Question 35

Scientific laws describe what happens in ____.

Answer 35

Nature

Question 36

Who was the French chemist that wrote the Law of Conservation of Mass in 1774?

Answer 36

Antoine-Laurent Lavoisier

Question 37

What does the Law of Conservation of Mass say?

Answer 37

That during a chemical reaction, matter is neither created nor destroyed, just rearranged.

Question 38

What is a law?

Answer 38

A rule based on observation of a process in nature that behaves the same way each and every time

Question 39

A _____ describes what happens A _____ describes why something happens

Answer 39

Law, theory

Question 40

So in result, can a theory become a law? Can a hypothesis become a law?

Answer 40

No

Question 41

What is chemistry?

Answer 41

Chemistry is the branch of science that studies matter, what is is and how is changes.

Question 42

How do organic compounds differ from inorganic compounds?

Answer 42

Organic compounds contain carbon and hydrogen bonds. Most inorganic compounds do not contain carbon.

Question 43

Name three of the five basic areas of chemistry and what scientists study in these areas.

Answer 43

1. Organic chemistry is the study of carbon-containing compounds. 2. Inorganic chemistry is the study of everything except carbon-based compounds. 3. Biochemistry is the chemistry of living things. 4. Physical chemistry is the study of chemical systems in terms of the principles of physics that used to measure physical properties of substances 5. Nuclear chemistry is the study of radioactivity and the decay of atoms

Question 44

What are two methods for investigating science?

Answer 44

Scientists approach their investigations either by searching for pure science (through knowledge and facts) or discovering applied science (using knowledge in a practical way)

Question 45

Name the basic steps of scientific inquiry

Answer 45

The basic steps of scientific inquiry are: ask a question, do background research, make hypothesis, test the hypothesis, analyze results, draw a conclusion, and share the results. If the hypothesis is proven false, another step is to create a new hypothesis.

Question 46

What are models and why are they used in science?

Answer 46

Models are representations of the experiment or object that allows the scientist to easily observe and gather data

Question 47

What is the difference between a scientific theory and a scientific law?

Answer 47

A theory is a scientist’s explanation of the facts, either measured or observed. A law is a rule based on observation of a process in nature that behaves the same way, every single time.