What is a factor that is changed during an experiment?
100
What is a dependent variable?
What is a factor being measured? (depends on independent variable - the DATA collected)
100
What is a control?
What is an object that is NOT tested, but compared to other objects that have been tested?
100
What is a hypothesis?
What is a statement that you make with known information that can be tested?
100
Why do people do multiple trials in experiments?
What is a way to get more accurate data?
200
What is the independent variable in a distance/time graph?
(see board)
What is the time?
200
What is the dependent variable in a distance/time graph?
What is the time?
200
What is the control in an experiment where you give 3 plants 3 different types of soil and 1 plant you give nothing to?
What is the plant that you give nothing to
200
Why do we make a hypothesis?
To know the purpose of an experiment, to test your hypothesis
200
If someone tested a balloon powered car 5 times and recorded the distance, how many trials did they do?
What is 5 trials?
300
What is the independent variable in a lab where you bounce 3 balls on the same surface to see how high they go but do a different ball every time?
What is the ball?
300
What is the dependent variable in a lab where you bounce 3 balls on the same surface to see how high they go but do a different ball every time?
What is how high the balls go?
300
Why do we have controls?
What is to compare to other objects that have been tested?
300
Why is the first thing to do in an experiment (after coming up with a question) making a hypothesis?
Because you need to have something to test! Without an hypothesis, it is not a real experiment
300
How many trials at least should you do in an experiment to get accurate data?
What is at least 3 trials?
400
What is the independent variable in a lab where you roll 1 ball down a ramp, but do it on different surfaces?
What is the surface the ball is rolling on?
400
What is the dependent variable in a lab where you roll 1 ball down a ramp, but do it on different surfaces?
What is how far the ball rolled?
400
Name a CONSTANT in an experiment where you give 3 plants 3 different types of soil and 1 plant you give nothing to?
Many different answers: Same plant, same amounts of water at the same times of day, same temperature, etc.
400
DOUBLE JEOPARDY
You want to test the effects of Mentos on different soda types. Create a hypothesis.
(Hint: use "if...then...because..." statement)
Answers may vary.
Ex: If I add 5 Mentos to diet and non diet cola, then the diet cola will have a longer reaction because diet cola has less sugar.
400
What is it called when you repeat your OWN experiment?
Repitition
500
DOUBLE JEOPARDY
How is the independent variable different from a dependent variable?
An independent variable is changed on purpose. The dependent variable is changed because of the independent (but it is not done on purpose by the scientist).
500
How is the dependent variable and independent variable SIMILAR?
Answers may vary.
They both change! One is changed on PURPOSE (independent variable), one changes because of the independent variable.
500
How is a constant DIFFERENT from a control?
A constant is something you keep the same throughout the experiment. The control is was is UNTESTED and is only used as a comparison.
500
You want to test the effects of time on the height of your shadow. Create a hypothesis.
(Hint: use "if...then...because..." statement)
Answers may vary:
Example: "if I measure my shadow monthly, then I will observe my shadow being taller in the summer, because the northern hemisphere is tilted towards the sun"
500
What is it called when you repeat another scientists experiment?