Vocab
What you measure change against in an investigation?
Control Group
A factor that can change in an experiment
Variable
Asking my teacher questions when doing an experiment will help keep me safe
true
In an experiment how many variable should be tested at a time
one
Why are models helpful/good/beneficial?
- save on money
- save on materials
- Allows you to make changes and see the item before creating it for real
Step-by-step instructions for completing a task
Procedure
Using senses to find out about objects, events, or living things
observation
Scientists should not form/share opinions during an experiment or investigation
true
A scientific conclusion is based on what?
facts
How are models bad/limited?
- Not the actual object, not always 100% accurate
- most are missing details
- Not easy to replicate (missing exact features and materials)
A statement of what you think will happen during an investigation
hypothesis
A conclusion you come to based on evidence
inference
A hypothesis should be written as a question
false
To be a valid investigation the experiment must be able to be ________
replicated
Whats another word for a hypothesis
prediction
information gathered, needed to make conclusions
data
a scientific procedure to make a discovery or test a hypothesis
experiment
Opinions are beliefs and judgments
true
What is a model?
a representation of and object, event, or idea
What are some reliable science sources?
- research articles
- websites registered by government and educational institutions
- Science book
- etc.
Data collected from experiments or observations that allow us to say that something is true
evidence
Getting close to the exact measurement (middle) over and over
accuracy
Models are always accurate and helpful
False
What are the two other ways scientists investigate besides using models
surveys and sampling
Why should data be organized?
- saves time
- easier to communicate results
- Using charts, graphs, tables lets us see the information easier
- Easier to observe patterns in the data
- its useful/helpful