Fall Semester Exam Review #4 (Unit 1)

Question 1

steps to the scientific method

Answer 1

make hypothesis
make a prediction
conudct investigation
analyze and interpret results
draw conclusions
communicate results

Question 2

What are some different ways that scientists can record quantitative data

Answer 2

charts
data tables
models (diagrams)
graphs

Question 3

What is qualitative data

Answer 3

data collected that invovles 5 senses

these are often adjectives and descrptive words

Question 4

What is quantative data

Answer 4

data collectd that invovles measurements or numbers.

Things like finding density, creating a graph with data, times, masses, etc

Question 5

What are lab saftey preventative measures

Answer 5

gloves
apron
goggles

Question 6

What are the emergency lab safety tools

Answer 6

eye wash station
shower
fire blanket
fire extingusher
first aid-kit

Question 7

What is an independent variable

Answer 7

What you change in an experiment (variable being tested)

Question 8

What is a dependent variable

Answer 8

measure to what you change

Question 9

What makes a hypothesis valid

Answer 9

must be testable

wil give both independent and dependent variables defined in the hypothesis

Question 10

What are the 3 types of investigations

Answer 10

Experimental
Descriptive
Comparative

Question 11

What are the differences between the 3 types of investigations

Answer 11

Experimental- scientic method with IV, DV, and control group

Comparative- compare and contrast

Descriptive- identifying things (involves drawings and descriptions)

Question 12

What types of graphs do we use to compare variables?
(write also what data they display)

Answer 12

scatter plots- larges amounts of data with multiple variables

pie chart- numbers and percentages

line graph- relationships between 2 variables and typically includes a line of best fit or best curve

Bar graph- compares different categories of data to see how they measure against each other