8th grade science test 1 review

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created 4 years ago by lsudduth
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1

emergency safety equipment

equipment that is used in the event of an accident to help fix a problem

2

first Aid kit

a small supply of basic items to treat minor injuries

3

P.A.S.S.

the acronym used to recall the proper operation of a fire extinguisher

4

preventative safety equipment

equipment used to prevent lab accidents

5

wafting

the proper method for smelling any substance in lab; using a hand to wave a scent toward your nose

6

scientific method

a set of steps that scientists follow to design and complete experiments

7

conserve

using resources wisely; not wasting

8

observation

the process of gathering information by using the senses

9

pseudoscience

the false science

10

science

the systematic study of the natural world

11

evidence

informstion from an investigation including observations and measurements

12

hypothesis

a statement of what you believe will be the outcome of an experiment; usually an "if,then" expression

13

inference

a logical conclusion drawn upon prior knowledge and the evidence provided

14

procedure

a set of "how to" steps that you follow to complete an experiment

15

materials

all of the items used in a scientific investigation

16

variable

a factor in an experiment

17

Dependent variable

a a variable that is observed to record/ measure its reaction (how it changes) during an experiment

18

Independent Variable

A variable that is controlled (intentionally changed) in order top observe the effect on another variable.

19

Control

A part of an investigation that is identical to the experimental group except that the independent variable is not changed.

20

Scientific Investigation

An organized procedure to study something.

21

Scientific Theory

An explanation supported by a great deal of evidence collected over a long period of time using the scientific method.