When we gather information with our senses - taste, touch, smell, see, hear - it is called.
stating hypotheses
making observations
performing experiments
forming conclusions
How do experiments help scientist learn.
It helps them learn only if they make new discoveries.
It helps them become famous
It helps them answer questions about the world
It only helps if they get thier hypothesis right.
The final summary of the data and results is/are called a(n) _____.
Inference
Experiment
Hypothesis
Conclusion
If I put on stronger sunscreen, then I will burn less. What is the dependent variable?
Strength of sunscreen
Time spent in the sunlight
Severity of sunburn
If I put my batteries in the fridge, they will last longer. What is the control group?
Batteries in the oven getting warm
Batteries on the countertop at room temperature
Batteries in the fridge getting cold
Why do scientists publish the results of their experiments?
to make money
so that other scientists can see that they are working
so that publishers can print books on science
so that other scientists can learn from what they did
A control group is used
to compare a variable to
as data
as a conclusion
for multiple trials
What skill is a scientist using when she listens to the sounds that birds make?
Forming a hypothesis
Drawing conclusions
Interpreting data
Making observations
If I floss more, then I will have fewer cavities. What is the independent variable?
Number of cavities
Type of floss
Amount of flossing
The question that is being tested is called a(n) _____.
Data/Results
Hypothesis
Experiment
Problem
Which goes first in a scientific experiment?
question or problem
data, tables and charts
conclusion
hypothesis
Why do scientists collect data during an observation or investigation?
To do math
For the science fair
To answer a question about the world
To make a graph
When we gather information using the 5 senses this is called....
making observations
forming conclusions
performing experiments
stating a hypothesis
What is the difference between the people who like cats and goldfish?
2
5
4
8
(True or False): A hypothesis is made before an observation has taken place.
True
False
Making an interpretation from an observation is called a(n) _____.
Controlled Variable
Hypothesis
Inference
Experiment
Which of the following would make the results of an experiment more reliable?
Changing the procedure
Multiple variables
Repeated/Multiple trials
Change the hypothesis
Interpretting data: In the graph below what is the 2nd most popular sport in the school
basketball
softball
soccer
other
When you write down or record what is happening in your experiment it is called
an experiment
a hypothesis
an observation
a conclusion
An educated guess or statement about what is going to happen is called a(n) _____.
Observation
Problem
Hypothesis
Controlled Variable
Which is the best scientific question?
Which smart phone works very well?
Which smart phone has the most internal memory?
Which smart phone is the best?
Which smart phone is the worst?
What would happen if scientist didn't publish thier findings in journals?
Other scientists would not benefit from thier work.
They would never be famous
People could steal thier work
They could get too famous
Information or observations collected during an experiment are called _____.
Conclusion
Problem
Hypothesis
Data/Results
The variable that is measured in an experiment is known as which of the following?
Independent variable
Experimental variable
Dependent variable
Controlled variable
Which of the follwoing is always an important part of an experiment?
identifying and cotrolling variables
observing things in nature
making drawings of things observed
making a working model
If I increase my vitamin C intake, then I will have fewer colds. What is a controlled variable?
Number of colds
Amount of vitamin C
Amount of times you come in contact with germs
Scientific evidence is:
supported by popular votes
what people like
how people feel about things
data that supports your findings
Scientists share thier findings to....
compete with each other
kep their work secret
so they don't have to repeat it
learn from each other
The process of testing a hypothesis under controlled conditions is called a(n) _____.
Experiment
Observation
Conclusion
Data/Results
A variable can be controlled when:
When you make constant chages to the groups.
When all your test groups are the same.
When none of your test groups are the same.
You compare a normal group to a group you are testing on.
A controlled experiment...
tests multiple variables
only tests one variable
does not add any variables to the tests
Ussually only includes one trial
The first step in the scientific method a scientist usually takes is to
create a conclusion
create a hypothesis
create a testable question
gather evidence
Does pipe material affect the temperature of flowing water? What is the dependent variable?
Pipe material
Diameter of the pipe
Water temperature
Why do scientists repeat experiments several times?
to make sure their results are accurate
to memorize the procedures
to use up all their materials
to change the variable each time
The variable that is kept the same through the experiment is called a(n) _____.
Dependent Variable
Controlled Variable
Hypothesis
Independent Variable
Which would you do first in a scientific investigation?
form a queston or probem
organize data
draw conclusions
write a hypothesis