Scientific Method
A series of steps designed to help you solve problems and answer questions
A) scientific method
B) experiment
C) hypothesis
D) observation
A) What is the scientific method?
What is a control (constant) in an experiment?
What is the part of the experiment that does not change?
Identify the independent variable. I want to know if vitamins will make a kitten grow faster.
What is giving the kitten vitamins or not?
What skill is a scientist using when she listens to the sounds that a whale makes?
a. making a hypothesis
b. collecting data
c. making observations
d. drawing conclusions
What is making observations?
Scientists test hypotheses by:
a. formulating questions
b. designing models
c. doing experiments
d. drawing conclusions
What is doing experiments?
What is another word for educated guess?
What is a hypothesis?
In an experiment, the variable that is deliberately changed is the ___________ variable.
What is independent?
Sally conducts an experiment measuring plant growth. She finds that after two weeks, a plant that received water grew 4 cm, but a plant that received soda died. What is the term for what is being measured?
What is the dependent variable?
The dog is 6 years old, the sidewalk is 500 yards, and her hair was cut 6 cm are all examples of __________ observations.
a. qualitative
b. quatitative
What is quatitative?
Which of the following steps of the scientific method is completed last?
a. collecting data
b. draw conclusions
c. test a hypothesis
d. design an experiment
What is draw conclusions?
When a scientist shares her findings with other scientists, she is
A) analyzing data
B) making a hypothesis
C) experimenting
D) communicating results
What is communicating results?
Marcie is trying a new cookie recipe. She wants to see if the amount of baking powder she uses will make the cookies rise more. She makes three batches of cookies and changes the amount of baking powder for each batch.
What is the dependent variable?
What is the height of the cookies?
Identify the step of the scientific method. Stephen predicted if an electric current traveled through the soil in which seeds were planted then seeds would grow faster.
What is hypothesis?
The dog is soft, the sidewalk is hot, and her hair is brown are all examples of __________ observations.
a. qualitative
b. quatitative
What is qualitative?
Identify the control group:
How does the amount of fertilizer affect the growth of bean plants?
What is the group that doesn't receive fertilizer.
The process of obtaining information by using the senses is called a/an
A) making an observation
B) scientific method
C) inquiry
D) conclusion
What is making an observation?
Susie wondered if the height of a hole punched in the side of a quart-sized milk carton would affect how far from the container a liquid would spurt when the carton was full of the liquid. What is the independent variable?
What is the height of the hole punched?
Controlled variables (constants) are things that _______ ____ ______.
What is stay the same?
Make a qualitative observation about the snow outside
ex: The snow is white
The snow is cold
The snow is fluffy
The snow is wet
Identify the experimental group. I am wondering how sugar affects the activity level of mice.
What is the mice who receive sugar?
Identify the step of the scientific method. Stephen predicted if an electric current traveled through the soil in which seeds were planted then seeds would grow faster.
What is making a hypothesis?
Identify the dependent variable. If I put in more effort, then I will succeed in school because I will train my brain to be stronger.
What is success in school?
Susie wondered if the height of a hole punched in the side of a quart-sized milk carton would affect how far from the container a liquid would spurt when the carton was full of the liquid.
DV=
DV= the distance the liquid spurted
What could be a quantitative observation you could make outside today?
ex:
The snow is 8 inches deep
The temperature is 1 degree
The wind is blowing 15 mph
An investigator isinterested in seeing how tall a certain species of plant will grow if it is kept under a red light for a month. What would be a valid hypothesis for this experiment?
Ex:
If the light is red, then the plant will grow taller.