7th Grade Science - Scientific Method Test

50 terms by sdegroot 

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scientific method

basic steps used by scientists in solving problems

theory

most logical explanation for events that occur; although unproven

law

rules that describe a pattern in nature, like gravity

observations

use: senses, tools, qualititves, quantitives

qualitatives

describes qualities or characteristics - color, ordors, sounds, textures

quantitatives

numerical data - mass, density, length, volume, temperature, amount

scientic methods

ways, or steps to follow, to try to solve problems and answer questions

2 types of scientific research

desriptive or qualitive research and experimental research

descriptive research

research based on observations (think of describing)

experimental research

testing a hypothesis, scientific method

parts of experimental research

stating a question, research background information, forming a hypothesis, testing you hypothesis, data collection, analysis/graphs and conclusion

stating a research question

describe the question you want to answer

research background information

find out as much as you can about your problem

forming a hypothesis

states for effect of the independent variable on the dependent variable; if, then statements; use knowledge to form your hypothesis

hypothesis

statement that can be tested

testing your hypothesis/procedure

identify variable; write you materials list; write the procedure

independent variables

sometimes called manipulated variables; variable that is changed; what is being tested

dependent variables

sometimes called responding variables; variable that is being observed and measures

controlled variables

sometimes called constants; not allowed to change;

controls

sample that is treated like the other experimental group except that the independent variable is not applied to it

data collection

create a chart or table to store and organize data; do experiment and record results

analysis/graphs

displays trends, patterns & relationships can be seen; allows us to see if data supports hypothesis or not

trend

changes, increases, decreases in data

patterns

repeated data that is similar

relationships

how one variable affects another

bar graph

used to show comparisons

line graph

used to show changes & trends

conclusions

the final summary of an investigation; includes a restatment of the question and hypothesis, discusses the data, what the data means, problems with the research, ways to carry the research further, why the research is important

celsius

temperature scale used in the metric system

data chart

a place for recording data; may be numbers or pictures

data collection

writing down the observations and results of an investigation numerical data is recorded in data tables, other types of data are recorded in data charts

data table

a place recording quantititive data in rows and columns

data

the observations and results of an experiment; information gathered during an experiment

demonstration

display of a scientific model that simply shows how something works

descriptive research

research based on observations

experimental design

the plan for deciding how to answer a scientific question; the material and procedures used to conduct an experiment

experimental research

investigation that involves variables; scientific test in which data is gathered/compared with the used of variable and often a control

mass

amount of matter in an object

procedure

the step-by-step insturction for conducting an investigation

question/problem

what the scientist is trying to find out; called the Research Question

research

scientific information gathered through observations, surveys

science

a way of learning about the world around us

variable

factor being tested in an experiment

volume

amount of space an object occupies

scientific method acrostic

sarah coughs while peter eats awesome walnuts

constants

variables that could change, but are not allowed to; also called variables

demonstation

display of scientific model that simply shows how something works

x-axis

indepent goes on

y-axis

dependent goes on

circle graphs

a circle divided into sections to display data; each section represents part of the whole; all sections together equal 100%

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