Scientific Variables Question Preview (ID: 57141)
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Read this testable question and determine the independent variable. Does the size of the wheel impact how fast it will roll down a ramp?
a) How far the wheel rolls
b) How fast the wheel rolls
c) The size of the wheel
d) The weight of the wheel
Read this testable question and determine the dependent variable. Does the size of the wheel impact how fast it will roll down a ramp?
a) How far the wheel rolls
b) How fast the wheel rolls
c) The size of the wheel
d) The weight of the wheel
Scientists ask and seek answers to research and testable questions. Which of the following would you consider to be a testable question?
a) How many fish species in the great lakes eat algae?
b) What impact does the amount of salt have on the boiling point of water?
c) Do all planets rotate and revolve at the same rate?
d) What is the scientific term for an animal that eats only plants?
Read this testable question and determine the independent variable. Will bounce height be impacted by the size of a basketball?
a) Size of basketball
b) Bounce height
c) Length of court
d) Air pressure in basketball
Read the following statement and determine which step the scientist was completing in designing the experiment. If more oil is added to the wheel, then friction will be reduced because oil will allow the parts to spin more smoothly and there will
a) Writing a hypothesis
b) Stating a testable question
c) Gathering background info
d) Forming a conclusion
Which term refers to a possible explanation for an observation that can be tested by scientific investigations?
a) hypothesis
b) control
c) independent variable
d) observation
Which refers to the factors in an experiment that do not change?
a) constant
b) control
c) independent variable
d) dependent variable
TQ: Does basil grow taller in full or partial sun? What type of variable is the brand of basil seeds?
a) independent variable
b) dependent variable
c) control
d) constant
TQ: Will a kite with parchment paper wings fly higher than one made with newspaper? What type of variable is the height?
a) independent variable
b) dependent variable
c) control
d) constant
TQ: Will adding more baking powder make the cupcakes rise higher? What type of variable would a cupcake made with the *original* recipe be?
a) independent variable
b) dependent variable
c) control
d) constant
TQ: Will changing the slope of a ramp change the distance a matchbox car travels? What type of variable is the slope of the ramp?
a) independent variable
b) dependent variable
c) control
d) constant
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