In class quiz 1

Question 1

What are the components of the scientific method?

Answer 1

Observations, Questions, Hypothesis, Predictions, Tests/experiments, conclusion (Our Queen Hates People That/eagerly Cuss)

Question 2

Observations

Answer 2

Observations can be seen in nature. We can also make observations from scientific readings, like journal articles, abstracts, meetings, ect. From these observations, we develop questions.

Question 3

Questions

Answer 3

We form questions to help explain our observations

Question 4

Hypothesis

Answer 4

Using the questions, we use a hypothesis to generate them. A hypothesis is a tentative answer to the questions we’ve generated. The hypothesis statements should be made through the use of inductive reasoning which is where we take specific observations or questions to make generalized statements.

Question 5

Prediction

Answer 5

Using the hypothesis, we predict the outcome of experiments which will test the hypothesis. We derive predictions through the use of deductive reasoning which is the opposite of induction. Deduction is where we take general statements of the hypothesis and predict specific results.

Question 6

Experiments or testing the hypothesis

Answer 6

Now we design experiments or make observations which will support or disprove the hypothesis. There is no proof in research, only indications. [ to prove smoking causes cancer, we would have to prove that every smoker has cancer.]

Question 7

Variables

Answer 7

factors which effect the outcome of the experiment

Question 8

Which variable is tested in an experiment?

Answer 8

The independent variable [we only test one variable at a time]

Question 9

Dependent Variable

Answer 9

The variable that may change due to the independent variable

Question 10

What is interchangeable in an experiment?

Answer 10

Variables are the only thing interchangeable and you can only change one at a time.

Question 11

fun fact!!! What do people of the asian descent have the americans dont?

Answer 11

Alcohol dehydrogenase in which they can be drunk after half a beer due to making a small amount of this enzyme.

Question 12

How many controls will be in each experiment?

Answer 12

There will only be one positive and one negative control per experiment.

Question 13

dependent variable you are testing for

Answer 13

positive control

Question 14

the negative control will never be the variable you are testing for

Answer 14

true

Question 15

what is always a negative control because it is pure?

Answer 15

water

Question 16

The positive control is what you are testing for ex: what solution would you see if starch was present in a solution

Answer 16

answer: starch

Question 17

experimental group

Answer 17

The independent variable is changed

Question 18

the control group

Answer 18

the independent variable remains the same

Question 19

Bias

Answer 19

Pre-determined notion about how the experiment can go

Question 20

Can Bias change the results of the experiment?

Answer 20

Yes, it may change the results because scientists may purposefully or inadvertently influence the results to fit the hypothesis. Bias can cause the results to be skewed.

Question 21

Placebo

Answer 21

sugar pill instead of your drug

Question 22

you can get false results due to the placebo because those who dont know what medication that are taking will react as if they have had a drug that they didnt due to the placebo effect, causing false results.

Answer 22

true

Question 23

double-blind experiment

Answer 23

neither the scientists nor the participants are aware or reject the hypothesis. If we reject the hypothesis, we must come up with a new hypothesis.

Question 24

conclusions pt 2

Answer 24

based on the results, we accept or reject the hypothesis, if we reject the hypothesis, we must come up with a new one.

Question 25

We never state that the IV causes the DV, only that there is correlation or a relationship

Answer 25

true

Question 26

Theory

Answer 26

hypothesis that has been consistently supported by observations or experiments.

Question 27

Law

Answer 27

When a theory has been supported over many years with many scientists doing multiple experiments that all support the hypothesis.

Question 28

What has everything they need to be self sufficient?

Answer 28

Single-celled organisms

Question 29

specialization increases until some cells do only certain things

Answer 29

Multi-cellular organisms

Question 30

Tissue

Answer 30

A group of cells that perform a common function

Question 31

Organ

Answer 31

A group of tissues that perform a common function

Question 32

Organ system

Answer 32

A group of organs that perform a common function

Question 33

Organism

Answer 33

any completely living thing

Question 34

homeostasis

Answer 34

the steady state of the organism: normal conditions

Question 35

When the body leaves homeostasis it enters infection

Answer 35

true

Question 36

Living things take in energy and use it for maintenance and growth, must be able to carry out metabolism- the process of chemical reactions necessary to live. Metabolic activities are kept in balance to maintain homeostasis

Answer 36

true

Question 37

makes changes in response to a stimulus in their environment

Answer 37

living things

Question 38

a complex set of responses

Answer 38

a behavior

Question 39

an increase in size of the cells or an increase in the number of the ells

Answer 39

growth

Question 40

changes that occur to the organism during its life

Answer 40

development

Question 41

Reproduction is not essential for the survival of independent organisms but must occur for a species to survive

Answer 41

true

Question 42

asexual reproduction

Answer 42

producing offspring without the use of gametes

Question 43

sexual reproduction

Answer 43

producing offspring by the joining of sex cells

Question 44

traits giving an organism an advantage in a certain environment

Answer 44

adaptations

Question 45

variations of individuals is important for a healthy species

Answer 45

true

Question 46

3 parts of an atom (atom structure)

Answer 46

proton, neutron, electron

Question 47

proton

Answer 47

positive

Question 48

neutron

Answer 48

neutral

Question 49

electron

Answer 49

negative

Question 50

the characteristic for organic compounds

Answer 50

Organic compounds must contain carbon and must contain a living cell

Question 51

cancer cells have more than just two centrioles

Answer 51

true

Question 52

atoms->element->compound->cells->organism

Answer 52

know!

Question 53

hydrophilic

Answer 53

attracted to water

Question 54

hydrophobic

Answer 54

isnt attracted to water

Question 55

Protons and neutrons make up the nucleus of an atom and electrons orbit the nucleus

Answer 55

true

Question 56

normally an atom has no charge because the number of protons equals the number of electrons

Answer 56

true

Question 57

you cannot change the number of protons in an atom or the atom will become a different element

Answer 57

for example - carbon has 6 protons but if it loses one it would become Boron

Question 58

what has two or more elements

Answer 58

a compound

Question 59

Atomic number

Answer 59

tells us the number of protons in an atom

Question 60

atomic weight/mass

Answer 60

weighted average of the number of protons and neutrons. Electrons are not included in the atomic weight because the are so lightweight.