Scientific Method
What is a series of steps designed to help you solve problems and answer questions?
A) scientific method
B) conclusion
C) hypothesis
D) observation
A) scientific method
When a scientist shares her findings with other scientists, he/she is
A) analyzing data
B) making a hypothesis
C) experimenting
D) communicating/sharing results
D) communicating/sharing results
What do we use to make observations?
Our senses
The information (evidence) gathered from observations and experimentation is called ________________.
Scientists normally record it during the experiment.
Data
Scientists are the only individuals who use the scientific method.
True or False
False - WE ALL USE IT
What is the last step of the scientific method?
Draw a Conclusion
What is a variable?
something that can affect the outcome of an experiment
Which of the following hypotheses is written most correctly?
A) If a tennis ball is frozen, it won't bounce as high.
B) If I heat up a tennis ball, will it bounce higher?
C) No.
D) Yes.
A.
It is the guess to a question and the most complete statement.
When testing if the height of a boat affects the number of passengers the boat can hold, Jenny chose cups to use as models of boats in her experiment. She chose tall plastic cups and short paper cups.
Did she do a good job of making sure this is a fair test?
No.
Give an example of the 2nd step of the scientific method.
Any QUESTION that might be based off of an observation will be acceptable!
What is an educated guess of the answer to a scientific question that can be tested in an experiment?
Hypothesis
When can you draw a conclusion?
Which vocabulary word means the final answer based on the results of an experiment?
Conclusion
Wendy and Ethan are racing toy cars across different surfaces.
Which step of the scientific method are they most likely on?
Experiment (testing the hypothesis)
Before you can form a hypothesis, you need to
a. ask a question
b. perform an experiment
c. state a conclusion
a. ask a question
Test the Hypothesis (experiment)
a. Testing it only once is being lazy |
b. You want to get the most accurate results. c. Testing it just once is actually always okay. That's what all good scientists do. |
B - You want to get the most accurate results.
George wanted to see if a plant grew faster when you give it caffeine. He planted 2 identical tulip plants in 2 identical pots in the same type of soil and placed them in the same window seal to get sunlight. Every morning, he gave 1 tulip 1/2 cup of coffee and gave the other tulip 1/2 cup of water. He carefully measured the tulips' heights every day and recorded the data in his notebook. | |
Yes, but it would be even better if he tested more plants.
True or False?
Your hypothesis should NEVER be incorrect.
False. It's just a guess!
What step of the scientific method is this?
Analyze data
A scientist conducted an experiment to determine how the amount of salt in water affects the plants that can live in the water. In this experiment, the only variable that should be changed is
A) the types of plants or B) the amount of salt in the water
B) the amount of salt in the water
What are the first 2 steps to the scientific method?
Make an observation.
Ask a question.
When planning an experiment, you need to consider all of the variables so that you are sure to have a ____________ test.
If not, your experiment may not give you accurate results.
fair
Steven noticed that his pencil looks odd when he puts it into a cup of water. It seems to change size, but it looks normal when he pulls it back out of the water.
What step of the scientific method is this?
Making Observations
A researcher conducted an experiment to see if temperature effected the blooms of a rose bush... What is the only variable that should be different in this experiment?
The temperature