Characteristics Of Life, Scienfific Method

Question 0

What is a biotic?

Answer 0

A living or once living thing

Question 1

What is an organism?

Answer 1

Any living thing

Question 2

What is an abiotic?

Answer 2

Something that was never living

Question 3

What are first 4 characteristics of life? (Not respond, stable environment, eliminating waste, or adapt)

Answer 3

• living things are organized
• living things reproduce
• living things grow and develop
• living things obtain and use materials and energy

Question 4

What are the last 4 characteristics of life? (Not reproduce, organized, grow and develop, or get energy)

Answer 4

• They respond to their environment
• They maintain a stable environment
• Living things have methods for eliminate waste
• Living things are adapted

Question 5

What is a cell?

Answer 5

Collection of living matter enclosed by a barrier that separates the cell from its surroundings (cell membrane)
-smallest unit of an organism that is considered alive

Question 6

What is reproducing? What are the two types?

Answer 6

Production of new organisms or cells, involves the replication of DNA molecules
-Sexual or asexual reproduction

Question 7

What is growth?

Answer 7

An increase in size (cell number)

Question 8

What is development?

Answer 8

A change in shape and structure of an organism over time

Question 9

What is metabolism?

Answer 9

Combinations of chemical reactions through which an organism builds up or breaks down materials as it carries out its life process

Question 10

What are the 3 ways organisms obtain materials or energy?

Answer 10

• absorbs sunlight (photosynthesis)
• eats food
• breathes/respites

Question 11

What is stimulus? What are the two ways of getting stimulus?

Answer 11

A signal to which an organism responds

Can be external (light, temperature) or internal (sugar, glucose)

Question 12

What is homeostasis?

Answer 12

Keeping a stable internal environment

Ex: when your body temperature is low, you shiver; muscle movement creates warmth

Question 13

What are adaptations? How does it occur?

Answer 13

Modifications that make an organism suited to its way of life and environment
Occurs through evolution via natural selection

Question 14

How does natural selection occur?

Answer 14

• When the new variation arises that allows certain members of the species to capture more resources, these members tend to survive and to have more offspring than others
• Time, the new variation becomes more prevalent in the population

Question 15

What are the 5 steps in the scientific method?

Answer 15

• making observations
• forming a hypothesis
• asking questions
• testing predictions
• designing an investigation

Question 16

What is an observation?

Answer 16

When you use one or more of the senses to gather information

Question 17

What is a hypothesis?

Answer 17

A possible explanation for a set of observations or possible answer to a scientific question

Question 18

What are the parts of a good hypothesis?

Answer 18

• offers an explanation for an observation
• written as a definite statement and not as a question
• be testable by experimentation
• lead to predictions about the system

Question 19

What is a prediction?

Answer 19

An educated guess about a possible outcome

Question 20

What are the parts of a good prediction?

Answer 20

• is testible

- can lead to predictions about the research

Question 21

What is an experiment? What are the two groups?

Answer 21

A controlled test or series of tests to determine the validity of a hypothesis
Experimental and control group

Question 22

What is an experimental group?

Answer 22

A group in which a variable is applied (something is changed)

Question 23

What is a control group?

Answer 23

A group in which nothing is changed, used for comparison

Question 24

What is an independent variable?

Answer 24

The factor in an experiment that a scientist purposely changes

Question 25

What is a dependent variable?

Answer 25

The factor in an experiment that a scientist wants to observe which may change because of the manipulated independent variable

Question 26

What is data? What are the two types?

Answer 26

Evidence; information gathered from observations

Qualitative or quantitative

Question 27

What is qualitative data?

Answer 27

Descriptive and non-numerical date (color)

Question 28

What is quantitative data?

Answer 28

Data with measurements or counts that can be made (length)

Question 29

What is a theory?

Answer 29

A concept that joins together well-supported and related hypothesis; is supported by a broad range of observations, experimentations, and data

Question 30

What are the nine parts of the scientific inquiry?

Answer 30

• observe
• define the problem
• form a study question
• research the problem
• state the expectations (hypothesis)
• experiment and gather data
• analyze the results
• reflect on the findings
• communicate with the community

Question 31

What are the parts of a good answer to the so what question?

Answer 31

• Summarizing the skills learned
• Scientific concepts
• Why it’s important

Question 32

So what? (Scientific method)

Answer 32

• List the steps
• Relates to life because it helps you figure out answers to questions whether it’s scientific or not
• helps with accuracy and efficiency

Question 33

So what? (Characteristics of life)

Answer 33

• List the characteristics

- Helps scientists decide whether they’ve found life on other planets to know exactly what counts as life