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Science Experiments
Experiments often conducted by students to test different scientific theories and hypotheses
11,111 Questions
Collection of info gathered during the experiment, usally given in the form of a table is called?
dependent variable
What variables can affect the number of books sold by a door to door salesperson?
Variables that can affect the number of books sold by a door to door salesperson could include:
- whether another salesperson got there first
- how many people were home
- how many people answered their doors
- encountering mean guard dogs
- how many people liked to read
- the cost of one book
- how many people could afford books for self or for family
- whether pay day just occurred, or not
- how many bills the person needed to pay like rent and utilities
- interest in the books being sold
- whether the salesperson worked the route or was sick
- whether the salesperson's car broke down
- being in an accident
- the weather on work days
- major calamities, such as a tornado struck that neighborhood
What describes how the background research helps in the design of an experiment?
It provides information about why certain measurements are made in an experiment.
Is extra small bigger than small?
An extra small car is even larger than an extra large car when we wonder the mass to gradually increase but how large it is quickly increases so there is an ample of difference between the two
Extra small objects have larger absolute value than small objects but they are smaller on the line as we see them on the left rather than right of the number scales
Why is the hypothesis still not considered proven If experiments support a hypothesis?
A better explanation might exist.
Why might scientists conduct an experiment in a lab, and then repeat the experiment in the field?
To verify whether or not laboratory conditions are necessary to recreate the results.
If the same experiment produces the same results in different environments, then the scientist knows that the results are sound. However, if the results are different in different places, then it may be an environmental factor of the laboratory that is affecting the outcome. Repeating the experiment in different environments allows scientists to either confirm or rule out this possibility.
When doing science as inquiry should you have some idea of what you think the final result will be?
true :)
Precautionary measures before and after volcanic eruption?
Before a volcanic eruption, it is important to evacuate to a safe location if advised by authorities, create an emergency preparedness kit, and have a family emergency plan in place. After the eruption, individuals should stay indoors to avoid ashfall, wear protective gear if venturing outside, and follow local guidelines for cleaning up ash and debris.
What are the properties of a liquid that was formed by two gases?
This is a mixture of liquids (ex.: liquid air).
How does surface area affect a falling object?
Well it all depends on the surface area of the object.
The larger the surface area the slower it falls the maller the surface area the faster it falls.So if you drop two pieces of paper one scrunched up and one as jut a flat piece the scrunched up paper would fall fastest through the air.
Hope this helps :D
This didnt help everyone knew that^^^^^
causation
Why is it so important to control all variables except one?
The variable you can't control is presumably the one you want to know.
If you know one variable, it could be anything, weight, temperature, mass etc, and you know the result in the experiment, you can work out the missing variable and therefore the result of your experiment.
Why might a scientist use simulation in a controlled experiment?
to observe a 1000year process in just one day
What happens to the particles in copper when heated by a Bunsen burner?
When copper is heated by a Bunsen burner, the particles gain energy and vibrate more rapidly. As the temperature increases, the particles may eventually gain enough energy to overcome the forces holding them together, allowing the copper to melt and eventually evaporate into copper vapor.
The mongo seed will begin to sprout:D
Independent variables
What kind of scientist is Pro Oliver Headley?
Professor Oliver Headley (1942 to 2002) was a chemist and solar scientist. He is most known for his work on solar energy and promotion of alternative energy sources.
What variable should you already know before you perform a experiment?
A manipulated variable. (Apex)
Why is the control needed in any experiment?
Because you need to verify that the variable being tested is actually what made the difference.
Imagine that you were testing the theory, "If I put plants in red pots, they will grow." So as a test you put plants in red pots, and they grew. That's only half of the experiment, though, because if you put plants in green pots and they also grew, then the red pots don't change anything. In this case, the plants in green pots are the control group. In order to prove that the color of the pots mattered, you would need to do two sets of tests, one without the red pots.
After an experiment what do you do?
Clean up.
But, more importantly, you compile and analyze the observed and recorded data to see if it supports the original assumption of the experiment. Or if it disproves the hypothesis conclusively. Or if the data suggests a different connection between the variables being studied.
