True or False (and Why)
Variables
Experimentation
100
A scientific problem or question should be a yes/no question.
What is false?
100
The variable which is changed on purpose in an experiment
What is independent variable?
100
Ralphie is a picky eater as well as a curious little scientist. While shopping for breakfast cereals, he wants to know which cereal will not get soggy in milk. What is the independent variable?
What are the different types of cereal
200
If we are testing the effect of the number of days in water on the mass of gummy bears, the mass is the independent variable.
What is false?
200
The measured outcome in an experiment?
What is dependent variable?
200
Ralphie is a picky eater as well as a curious little scientist. While shopping for breakfast cereals, he wants to know which cereal will not get soggy in milk. Would this experiment give quantitative or qualitative results?
What is qualitative?
300
The IV goes on the x-axis and the DV goes on the y-axis.
What is true?
300
In the hypothesis, "If the temperature is decreased, the growth of bacteria will also decrease," the growth of bacteria is this.
What is the dependent variable?
300
Ralphie is a picky eater as well as a curious little scientist. While shopping for breakfast cereals, he wants to know which cereal will get soggy the fastest in milk. What kind of graph should Ralphie use? Why?
What is a bar graph to compare the different types of cereal.
400
An experiment could be considered invalid because of too many variables.
What is true?
400
Stays the same for all trials of the experiment
What are the control variable(s)?
400
Ralphie is a picky eater as well as a curious little scientist. While shopping for breakfast cereals, he wants to know which cereal will not get soggy the fastest in milk. What should be Ralphie's control variables?
What is the amount of milk, the amount of cereal, same bowl, etc...
500
In an experiment, it is okay to have more than one independent variable?
What is false
500
DDMS wants to see if students scored better on the test because they chewed gum. What would be the independent variable? What would be the dependent variable?
Independent Variable - Gum Dependent Variable - Scores on Test
500
Lulu wants to grow “better” bean plants. She plants bean seeds in many trays. Her hypothesis is that the more moisture the seeds receive, the faster they sprout. What would be her independent variable and dependent variable?
The independent would be the amount of moisture The dependent variable would how fast they sprout
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