21 questions
The independent variable is the ONE thing you _?_.
change
keep the same
experiment with
investigate
The variable that you measure is the _?_.
independent variable
dependent variable
constant variable
repeated trial
What is a hypothesis?
A hypothesis is the right answer to an experiment.
A hypothesis is the wrong answer to an experiment.
A hypothesis is an educated guess that is testable.
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, same amount of sunlight, and the same amount of liquid. In this investigation, what is the independent variable?
type of plant
different liquids
plant growth
amount of sunlight
Mr. S set up an experiment to see how the mass of a ball affects the distance it rolls off a ramp. Identify the dependent variable.
distance traveled by the ball
height of the ramp
mass of the ball
Mr. S normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his dependent variable?
type of reward
praise
type of dog
amount of time the dog follows commands
Mr. S normally uses praise as a reward to train his dog. He wants to know the best way to train his dog, so he sets up an experiment to find out if there is a better way to get his dog to respond to commands. What is his constant variable?
type of reward
praise
walking
amount of time the dog follows commands
An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, same amount of sunlight, and the same amount of liquid. In this investigation, the dependent variable is _?_.
the type of plant
the amount of sunlight
growth of the plant
the type of liquid
A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. What is the constant variable?
the ball used
the height the ball bounces
height of the ball being dropped
Jessie is concerned about how tired his classmates seem. He created a drink that he thinks will boost their energy. He recruits 100 classmates with a history of tiredness. He has 50 of them drink his new special energy drink. The other 50 drink a beverage that looks like the special energy drink, but is just water and food coloring. Both groups were told that they were getting the special drink that would boost energy. After 2 hours, 30 classmates in the first group reported having more energy and 8 classmates in the second group reported having more energy.
What is the independent variable?
amount of energy
special energy drink
the food coloring
Jessie is concerned about how tired his classmates seem. He created a drink that he thinks will boost their energy. He recruits 100 classmates with a history of tiredness. He has 50 of them drink his new special energy drink. The other 50 drink a beverage that looks like the special energy drink, but is just water and food coloring. Both groups were told that they were getting the special drink that would boost energy. After 2 hours, 30 classmates in the first group reported having more energy and 8 classmates in the second group reported having more energy.
What is the dependent variable?
amount of energy
100 classmates
special energy drink
Maria wants to know if birds prefer to eat in one place over another. She makes three feeders out of 2-liter bottles and paints all of them red. She fills each of the feeders with the same amount of mixed birdseed, and plans to keep the feeders out for 10 days before measuring how much seed is eaten from each feeder. She puts each of the feeders in her back yard: one feeder in a large dead tree, another feeder she sits on the dog house, and the last she sits in a small bushy tree.
What is the constant variable?
location of bird feeder
amount of birdseed eaten
type of birdseed
Maria wants to know if birds prefer to eat in one place over another. She makes three feeders out of 2-liter bottles and paints all of them red. She fills each of the feeders with the same amount of mixed birdseed, and plans to keep the feeders out for 10 days before measuring how much seed is eaten from each feeder. She puts each of the feeders in her back yard: one feeder in a large dead tree, another feeder she sits on the dog house, and the last she sits in a small bushy tree.
What is the dependent variable?
location of the birdfeeders
amount of time feeders are outside
amount of seed eaten
type of bird seed
constant variable
What effect does decreasing the temperature of a room have on a lifespan of a battery? Which variable is highlighted in red?
independent variable
dependent variable
constant variable
An experiment for a new asthma medication was set up into two groups. Group one was given the new drug for asthma, while group 2 was given a sugar pill. The sugar pill serves as a _?_.
control trial
dependent variable
independent variable
constant variable
In a controlled experiment, the variable that is changed to test the hypothesis is called the _?_.
constant variable
control
dependent variable
independent variable
The measurable factor in an experiment is known as the _?_.
constant variable
independent variable
control trials
dependent variable
What is the correct sequence for the scientific method we use?
Ask a question, analyze results, make a hypothesis, test the hypothesis, draw conclusions, communicate results.
Ask questions, make a hypothesis, test the hypothesis, draw conclusions, analyze results, communicate results.
Ask questions, make a hypothesis, test the hypothesis, analyze results, draw conclusions, communicate results.
Make a hypothesis, test the hypothesis, analyze the results, ask a question, draw conclusions, communicate results.
Sequence (place in the right order) the steps of this experiment according to the scientific method (aka which would you do 1st, 2nd, etc.).
A. Send your complete laboratory report to a national magazine for peer review. B. Place an equal number of alligator eggs in incubators set at 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, and 36 degrees Celsius. C. What incubation temperatures will produce a female alligator to hatch from an alligator egg? D. Plot alligator gender versus temperature results in a graphic format.
C, B, D, A
B, C, A, D
C, D, B, A
C, B, A, D