Investigations
If I wanted to build a replica of the water cycle which type of investigation would I be completing?
Model
In a controlled experiment, how many variables can be changed at one time?
just one
What is something that you notice using your senses. An observation of Inference?
Observation
What step of the scientific method do you collect information before testing?
Research
Why do scientists do more than 1 trial?
to make their experiment reliable
In which type of investigation would I observe living things in their natural setting?
Field Study
In a controlled experiment, what is changed on purpose to see if the outcome changes?
test/independent variable
What is a reasonable explanation based on things you already know or observed called?
inference
What step occurs before you gather your supplies and write down your procedure?
Hypothesis
What should lab groups do if they don't all get the same results?
look at the materials list, procedure, and then repeat the trial to see if they made mistakes.
When scientists collet description and measurements that are based on what they can clearly see they are conducting which type of investigation?
Observation
In a controlled experiment why is a control group necessary?
To have something to compare to the experimental group.
What is something true about a subject that can be supported by evidence that we base our claims on in science?
facts
What step involves writing down the step by step instructions for doing the experiment?
Procedure
Why is it important to write down your experimental procedure?
to allow other experimenters to repeat the exact same scientific investigation.
Which investigation compares two groups. One that is a control group and wone that is an experimental group?
In a controlled experiment, what are controlled variables?
All of the other parts of the experiment that stay the same. Same size, same amount, same brand etc
The ants prefer sugar more than salt
The ants make beautiful underground colonies
The ants love to work gathering food.
The ants prefer sugar more than salt
What step of the scientific method requires writing an if......then.....statement giving a prediction to what will happen?
Hypothesis
If two groups do the same experiment and one group skips a few steps will the two groups get the same results? Why?
Because everything has to be repeated exactly
Which type of investigation is an imitation of how something works, like a computer program or a learning how to fly a plane?
Simulation
In a controlled experiment what is the minimum number of trials you can do for the experiment to be valid?
3
Which of the following is an observation?
The material seemed too heavy to carry.
The woman loves blue she is always wearing it
The water level decreased in the cup I left out for a week.
The water level decreased in the cup I left out for a week.
Which step do you state weather your hypothesis was supported or not supported by your data?
Conclusion
Should scientists rely on the opinions of other scientists? why or why not?
No they should only use evidence based on facts.