_________ are objects or ideas that represent other things
Scientists use these to learn more about the world around them or test designs and materials. They are helpful tools often used to study things that are very large, have many parts or are difficult to observe directly. They are still not the actual object being tested so different results may occur.
Question 21
21.
Define observation
Question 22
22.
Surveys are sometimes the best way for a scientist to do a scientific investigation. Name 2 types of surveys
Question 23
23.
Name two types of appropriate reference materials used by scientists.
Question 24
24.
Name 4 of the 8 steps used in a Scientific Investigation.
Question 25
25.
Name 3 of the 6 things Scientists can measure with proper tools.
Question 26
26.
Tell me the similarites and differences of Precision and Accuracy.
How many variables should be tested at one time in a scientific investigation?
None
One
Two
Three
A scientist using scientific methods would NOT
ask a question.
form an opinion.
record data.
perform repeated trials.
What is another word for hypothesis?
evidence
graph
investigation
prediction
What should you be sure to do to stay safe when performing science activities?
ask my teacher questions
smell every chemical I use
wear loose clothing
use tools
Information from which a conclusion can be drawn or a prediction can be made are called
tools
procedures
details
data
For a scientific conclusion to be valid, what must it be based on?
opinions
facts
descriptions
questions
A valid scientific investigation must be able to be
replicated
graphed
predicted
observed
A scientific conclusion is based on
variables and experiments
observations and questions
facts and observations
tools and evidence
Data can be organized in many different ways.
Tables and Charts
Graphs and Graphics
All of the Above
With the use of all the science skills scientists often do not find solutions to common every day problems.
True
False
Scientific investigation starts with a testable question.
True
False
Experiment is defined as the use of scientific methods to test your hypothesis.
True
False
Sampling is not a technique used to collect data in a scientific investigation.
Scientists look at random people from a population to get a sample.
True
False
The dependent variable is the variable you can control
True
False
Control group is a standard against which change is measured.
True
False
Tools can help you gather information and analyze your data. As scientists share their findings, tools can also help you find information collected by others.
True
False
Sometimes, different conclusions can be drawn from the same set of data.