Big Ideas 1 and 2 The Practice of Science and Characteristics of Scientific Knowledge

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

Inference

A conclusion reached on the basis of evidence and reasoning

Variable

A factor that can change in an experiment

data table

A grid that displays the data plotted in a chart.

opinion

A personal view, attitude, or appraisal.

hypothesis

A prediction, based on research, is made about what you think the evidence is going to show. All of these in 5th grade should include the words If.... then.... because...

evidence

All results should be based on _____________ for an experiment to be valid.

Data

Facts, figures, and other evidence gathered through observations.

research

Information about the topic is obtained from reputable sources: books, internet (reliable sites), experts, encyclopedias, etc.

observations

Information gathered by noticing facts and occurrences using your five senses (see, hear, smell, taste, touch).

inquiry

The search for information and explanation, often focusing on specific questions.

analyze results

The step where you examine the data and look for patterns, trends, consistencies, etc

constant variables

The variables that remain the same throughout the experiment

conclusion

Was your hypothesis supported by the evidence? Or did the evidence disprove your hypothesis? These questions you answer in this last step of the Scientific Method.

model

a representation of an idea, an object, a process, or a system that is used to describe and explain something that cannot be experienced directly

control group

allows us to compare the test group with what would normally happen. Without the control group we would not be able to tell if the independent (test) variable makes a difference because we have nothing to compare it to.

problem

always in form of a question; the question we are trying to answer by doing the experiment

simulation

an imitation of an event; a reproduction of an event that is similar to the actual event

controlled experiment

an investigation in which scientists control variables and set up a test to answer a question - must always have a control group and a test group.

graph

data displayed on a bar, circle or line

reliable

dependable

Bubble experiment outcome (dependent) variable

diameter of the bubble

systematic observation

documenting descriptive details of events in nature -amounts, sizes, colors, smell, behavior, texture - for example - eclipse observations

interpretation

explaining the meaning of something

tennis ball lab test (independent) variable

floor surfaces

valid

founded on fact or evidence

3 trials

helps to ensure that the results of an experiment are reliable.and valid

Bubble experiment control group

recipe with 1 T of soap and 50 ml water

Bubble experiment test group

recipe with 5 T of soap and 50 ml water

Skittles experiment control group

room temperature water

tennis ball lab constant variables

same type of tennis balls; tennis balls dropped from the same height; same meter stick

publish

share results to allow other researchers to do the same experiment to see if they get similar results

field study

studying plants and animals in their natural habitat

investigation

the action of investigating something or someone; formal or systematic examination or research.

tennis ball lab outcome (dependent) variable

the height the ball bounced

outcome (dependent) variable

the measure of change between the control and test groups - for example, in the tennis ball lab, this was the height the ball bounced

repeated trials

the number of times procedures are repeated, usually 3-5, during a scientific experiment in order to achieve a more accurate result

experiment

the process of using a set of controlled observations that test the hypothesis

test (independent) variable

the thing in the experiment that you change to compare to the control group

Skittles experiment outcome (dependent) variable

the time it took for the candy coating to dissolve

replicate

to do an experiment just like the person that did it before

predict

to say what will happen before it occurs

Skittles experiment test group

warm water


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