Scientific Experiments Question Preview (ID: 34992)
Variables And Scientific Method.
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Justin usually blows his nose with Kleenex brand tissues. His snot keeps leaking through the tissue. He wants to see if there is a better brand. What is the dependent variable in his experiment?
a) brand of tissue
b) amount of snot the tissue can hold
c) Justin
d) Kleenex
Mr. McNice wanted to see how different types of music affected students heart rate. What is the independent variable in his experiment?
a) type of music
b) heart rate
c) students
d) Mr. McNice
Nick wanted to see how high an ice cube would float in different temperatures of water. What is the independent variable?
a) temperature of water
b) height of the ice cubes
c) amount of water
d) size of the ice cubes
Tiffany was investigating to see how fast it took Hayden to react to different sounds. Identify the dependent variable.
a) Hayden's reaction time
b) different sounds
c) Tiffany
d) playing the trumpet sound over and over
A(n) ______ variable is something that should stay the same throughout the entire experiment.
a) independent
b) controlled
c) dependent
d) staysame
A(n) _____ variable is the 1 thing that is changed or manipulated by the scientists
a) dependent
b) controlled
c) independent
d) variable
_____ data is collected when you use your senses.
a) Quantitative
b) Qualitative
c) Variable
d) Quantium
Which of the following is considered an inference?
a) The ground is wet, so it must have rained
b) The flower is red
c) If I increase my study time by 10 minutes, then I will make a higher grade on the science test
d) Tomorrow it will snow
Which of the following is an observation?
a) The ground is wet, so it must have rained
b) The flower is red
c) If I increase my study time by 10 minutes, then I will make a higher grade on the science test
d) Tomorrow it will snow
Which of the following is an example of a hypothesis?
a) The ground is wet, so it must have snowed
b) The flower is red
c) If I increase my study time by 10 minutes, then I will make a higher grade on the science test
d) Tomorrow it will snow
Which of the following is an example of a prediction?
a) The ground is wet, so it must have rained
b) The flower is red
c) If I increase my study time by 10 minutes, then I will make a higher grade on the science test
d) Tomorrow it will snow
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