Lessons 3-5 Ch 1

Question 1

Careful; systematic; data

Answer 1

Scientists make ______ and ______ observations and record those as ____

Question 2

A hypothesis is a possible answer to a question and they test it and record the data from the experiment

Answer 2

Describe what a hypothesis is and how what scientists do once they make one

Question 3

You use your five senses and other tools to describe surroundings

Answer 3

Describe the observing stage of the scientific method

Question 4

Answers a scientific question and is specific and testable

Answer 4

Describe how what a good hypothesis is

Question 5

Use your observations to run an experiment

Answer 5

Describe what you do to test your experiment

Question 6

Qualitative and quantitative

Answer 6

Name the two types of data

Question 7

Quantitative data

Answer 7

Data using values or measurements

Question 8

Qualitative data

Answer 8

Describing situations or observations with sensory words

Question 9

Non-significant data

Answer 9

Data that has no effect

Question 10

Statistically significant data

Answer 10

Data also has no effect due to chance

Question 11

A new hypothesis

Answer 11

What does rejection of a hypothesis lead to

Question 12

Independent variable

Answer 12

The variable being manipulated or changed in an experiment

Question 13

Dependent variable

Answer 13

Variable that is observed and measured and changes based on independent

Question 14

Constant variables

Answer 14

Variable that are kept the same

Question 15

They explain a wide range of observations and experiments

Answer 15

What do theories explain

Question 16

A wide range of scientific evidence

Answer 16

What supports theories

Question 17

No, never because new information is constantly being found

Answer 17

Are theories ever proven? Why or why not?

Question 18

Scientific journals- with results and conclusions and experimental methodical data

Answer 18

Name two examples of primary sources for theories

Question 19

Magazine articles, textbook, and news reports

Answer 19

Name examples of secondary sources

Question 20

Accuracy and Precision

Answer 20

What are the two main things you look for when making measurements

Question 21

Accuracy

Answer 21

How accurate a measurement is to a value

Question 22

Precision

Answer 22

The exactness of a measurement

Question 23

An enlarged image of the object

Answer 23

What do microscopes provide

Question 24

Light microscope

Answer 24

LEM; shows two-dimensional images of specimens; in color; uses light to enlarge image

Question 25

Scanning electron microscope

Answer 25

Three-dimensional surface of specimen; uses electrons to enlarge image; SEM

Question 26

Transmission electron microscope

Answer 26

TEM; two dimensional specimen; shows it as a thin slice; uses electrons to enlarge

Question 27

X-RAY images

Answer 27

Light rays that pass through tissue and is absorbed by teeth and bones

Question 28

MRI

Answer 28

Shows a cross section of your body

Question 29

MRI and X-Ray

Answer 29

Two examples of imaging technology

Question 30

They are used to study systems that can’t be studied directly

Answer 30

What is the purpose of computer models?

Question 31

heart attacks; effect of medicines on the human body; movement of water molecules in and out of cells; spread of disease through a population

Answer 31

Give examples of things studied with computer models

Question 32

Segment of DNA that stores genetic information

Answer 32

Gene

Question 33

Molecular genetics

Answer 33

A study and manipulation of DNA on a molecular level

Question 34

Genomics

Answer 34

Study and comparison of genes both within and across a species

Question 35

Food allergies; potential effects of obesity; cancer; effects of tobacco, alcohol, and other drugs

Answer 35

Name examples of how biology helps you understand your health

Question 36

Interactions in ecosystems; pollution; and biodiversity

Answer 36

Name examples of how biology can help you understand environmental issues

Question 37

It helps in DNA testing in medicine and forensics; transgenic (genetically modified) crops and bacteria

Answer 37

How is biotechnology used in processes of living things and helping in those processes

Question 38

Safety of transgenic crops, spread of undesirable genes, decrease in biodiversity, ethical conversations

Answer 38

What are some questions raised about biotechnology

Question 39

50; increased

Answer 39

In the past __ years, the knowledge of biology has (increased, decreased)