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On the following list, which procedure would not be included as part of a valid scientific experiment?
It must be able to be replicated by other scientists.
conducting of an organized procedure to study something under controlled conditions
It must communicate the conclusions of the experiment.
the mass of the object
feels slippery to the touch
uncontrolled variables
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
I think bean seeds that receive 10 mL of water a day will sprout faster than bean seeds that receive 5 mL of water a day.
Which description here characterizes an experiment?
It must be able to be replicated by other scientists.
conducting of an organized procedure to study something under controlled conditions
It must communicate the conclusions of the experiment.
the mass of the object
feels slippery to the touch
uncontrolled variables
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
I think bean seeds that receive 10 mL of water a day will sprout faster than bean seeds that receive 5 mL of water a day.
Which of the following is NOT a true statement about any hypothesis?
It must be able to be replicated by other scientists.
conducting of an organized procedure to study something under controlled conditions
It must communicate the conclusions of the experiment.
the mass of the object
feels slippery to the touch
uncontrolled variables
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
I think bean seeds that receive 10 mL of water a day will sprout faster than bean seeds that receive 5 mL of water a day.
In chemistry, scientists classify some substances as bases. The following are all characteristics of bases. Which observation can you make about a base using the senses alone?
It must be able to be replicated by other scientists.
conducting of an organized procedure to study something under controlled conditions
It must communicate the conclusions of the experiment.
the mass of the object
feels slippery to the touch
uncontrolled variables
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
I think bean seeds that receive 10 mL of water a day will sprout faster than bean seeds that receive 5 mL of water a day.
Hillary is dropping objects that are the same volume. She wants to investigate how an object’s mass affects the average speed at which it travels when dropped, until it hits the ground. Which variable must Hillary change during the experiment?
It must be able to be replicated by other scientists.
conducting of an organized procedure to study something under controlled conditions
It must communicate the conclusions of the experiment.
the mass of the object
feels slippery to the touch
uncontrolled variables
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
I think bean seeds that receive 10 mL of water a day will sprout faster than bean seeds that receive 5 mL of water a day.
Any good scientific investigation should include a large amount of trials, controlled conditions, and which of the following?
It must be able to be replicated by other scientists.
conducting of an organized procedure to study something under controlled conditions
It must communicate the conclusions of the experiment.
the mass of the object
feels slippery to the touch
uncontrolled variables
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
I think bean seeds that receive 10 mL of water a day will sprout faster than bean seeds that receive 5 mL of water a day.
Which statement is a hypothesis?
It must be able to be replicated by other scientists.
conducting of an organized procedure to study something under controlled conditions
It must communicate the conclusions of the experiment.
the mass of the object
feels slippery to the touch
uncontrolled variables
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
I think bean seeds that receive 10 mL of water a day will sprout faster than bean seeds that receive 5 mL of water a day.
Raul wants to investigate how the angle of a ramp affects the speed of an object rolling down the ramp. He can conduct his investigation in a number of different ways. Which investigation should he perform?
It must be able to be replicated by other scientists.
conducting of an organized procedure to study something under controlled conditions
It must communicate the conclusions of the experiment.
the mass of the object
feels slippery to the touch
uncontrolled variables
perform an experiment in a lab in which the angle of the ramp is controlled and the speed of a rolling cart is measured
I think bean seeds that receive 10 mL of water a day will sprout faster than bean seeds that receive 5 mL of water a day.
Check it!