Scientific Method
What is the first step in the scientific method?
Hypothesis , which involves scientists observing something and start to make predictions about them.
what is meant by boiling point of a substance.
It is the temperature at which a liquid starts to boil.
What step of the scientific method do you predict a possible answer to a problem or a question?
What is Hypothesis.
What are the two types of variables stated in a hypothesis?
What is Independent and Dependent.
What is meant by condensation?
It IS the change of state of matter from gas to liquid by cooling.
What step of the scientific method do you test your hypothesis?
first step
why an experiment should be repeated several times?
to give more reliable results
Putting my plant in the closet will decrease it's chance of living. What is wrong with this hypothesis.
the observation will be the plant not growing enough
What is the responding variable in an investigation.
What is Dependent Variable.
In which step of the scientific method do you use your information to draw conclusions about your experiment?
last step which is called analysis of data.
What step in the scientific method do you make careful observations and write down what happens?
Hypothesis
what is the next step after you get several readings from an experiment in an investigation.
you calculate the average.
If you drink more milk will you get stronger bones? what is the dependent variable in this investigation.
stronger bones or bones with higher density
control variable
The ________________ involves a series of steps that are used to investigate a natural occurrence.
What is Scientific process
what is meant by diffusion?
Diffusion is the spreading movement of particles from the area of high concentration to the area of low concentration.
they are variables that needed to be kept the same in an investigation to make a fair test.
I wonder if you smoke more cigarettes, will you have a better chance of getting lung cancer? what is the independent variable in this investigation.
Number of cigerettes
In an experiment what are the variables that are not being studied that are held constant so that they do not influence the experimental outcome called?
control variable
List the independent and dependent variables in the following hypothesis. If soil temperatures rise, then plant growth will increase.
What is...Independent-soil temperatures, Dependent-plant growth.
mention 2 ways you can present your data in an experiment.
bar chart and line graph.
mention 4 steps of a scientific process.
Hypothesis
experiment
presenting data in a table an a graph
drawing conclusions
the results from 4 experiments are :
exp 1 4 mins
exp 2 2 mins
exp 3 1 min
exp 4 3mins
calculate the average for these experiments
4+2+1+3 divided by 4= 2.5 mins
Find the independent and dependent variables in the following experiment: If you increase the number of times you practice shooting free-throws, then you will increase your chances of making a basket every time.
the Dependent variable is the ball getting inside the net.
the independent variable is the number of times he practice shooting the ball.
Thinking about the hypothesis: If soil temperatures rise, then plant growth will increase. What might a control in this experiment be?
What is... using the same potting soil, making sure both plants have an equal amount of light etc.