Unit 1: Sci Method and Characteristics of Life

Question 1

Observation

Answer 1

using your five senses to collect data

Question 2

inference

Answer 2

an explanation based on observation and background knowledge

***INFERENCES CAN BE TRUE OR FALSE

Question 3

Data

Answer 3

information gathered through observations information collected from an experiment

Question 4

Qualitative Data

Answer 4

description of qualities using letters (color, shape, or size)

Question 5

Quantitative Data

Answer 5

description of quantities using numbers

Question 6

Graphs

Answer 6

pictorial way of showing data.

used to see trends or patterns/ visualize data

Question 7

Bar graph

Answer 7

shows an amount of something at one specific time

Question 8

Line graph

Answer 8

shows a change over a period of time

Question 9

DOGRACER

Answer 9

acronym to remember the 8characteristics or traits of living things

Question 10

what do the letters in DOGRACER mean

Answer 10

DNA
Organized
Growth and Development
React or Respond
Adapt
Cells
Energy
Reproduce

Question 11

definition of DNA

Answer 11

Deoxyribonucleic acid: all living things contain DNA. DNA contains all the directions for building an organism. ***CODES FOR PROTEINS

Question 12

Description of Organized

Answer 12

Living things are organized

cells > tissues > organs > organ systems > organisms > populations > communities > ecosystems > biosphere

Question 13

Definition of growth and development

Answer 13

growth involves gaining mass/ getting bigger. Development involves changing or gaining skills.

Question 14

definition of react or respond

Answer 14

living things respond to stimuli to maintain homeostasis

Question 15

homeostasis

Answer 15

keeping internal conditions constant to maintain life

Question 16

definition of adapt

Answer 16

organisms develop behaviors body structures and internal features that help them survive. This change happens over a long period of time called evolution

Question 17

definition of cells

Answer 17

all living things are made up of cells. organized can be unicellular or multi-cellular

Question 18

Prokaryote

Answer 18

cells without a nucleus

***BACTERIA

Question 19

Eukaryote

Answer 19

cells with a nucleus

***PLANTS AND ANIMALS

Question 20

Energy

Answer 20

living things obtain and use energy

Question 21

Autotrophs

Answer 21

(self eat) make their own food using the suns energy

Question 22

Heterotrophs

Answer 22

(different eat) eat other living things

Question 23

reproduce

Answer 23

living things reproduce in order to make more of their species

Question 24

asexual

Answer 24

organisms make clones

***binary fission

yeast bacteria

Question 25

sexual

Answer 25

organisms combine genetic information

Question 26

scientific method

Answer 26

common steps used by scientists to gather data and to answer questions about nature

Question 27

5 steps to scientific method?

Answer 27

1) purpose 2) hypothesis 3) experiment 4) data analysis 5) conclusion

Question 28

purpose

Answer 28

the question or why you are doing it

Question 29

hypothesis

Answer 29

a scientific prediction that is testable

Question 30

experiment

Answer 30

a structured test of a hypothesis

Question 31

controlled experiment

Answer 31

scientific investigation where only ONE variable is changed and it's effects are measured

Question 32

data analysis

Answer 32

tables and graphs are used to visualizes patterns and trends

Question 33

conclusion

Answer 33

supports or REJECTS hypothesis based on data

Question 34

theory

Answer 34

one or more hypothesis that have been tested many times and are accepted by most scientists as true. ***THEORIES CAN BE DISPROVEN AND DO NOT BECOME LAWS

Question 35

law

Answer 35

simple rule about an action does not explain why it happens ***CANNOT BE DISPROVEN ***usually physics oriented and has a mathematical equation