T&F
The more trials you can run in an experiment, the more reliable the results.
T
meter
length
Explain the importance of multiple trials when conducting experiments
Makes the results more reliable
A predication or statement that can be tested
hypothesis
what is hypothesis? give an example
A prediction that you test. clouds make it rain
A hypothesis is a statement of fact
F, predictions
liter
liquid volume
tonne
mass
A way or process to investigate what is happening around us
science
Discuss two advantages of useing the International system of Units ,or SI, for measurements in scientific research.
Unified measurements, its in units of 10
Scientific discoveries influence only areas related to our health
F, all areas of life
gram
mass
Compare and contrast dependent and independent variables in a controlled experiments
dependent is a factor being measured a independent changes. They both are variables
A slanted view
bias
How could you use two beakers, distilled water, two hot plates, salt and a thermometer to test if adding salt affects the boiling point of water.
Put a beaker on each plate then add the same amount of water to each beaker the add salt to one of the beakers then record the temp in different time slats to see if it affects it
Scientific discoveries are made only by professional scientist
F, can be made by anyone
degrees Celsius
temperature
a factor that that can be changed in an experiment
variables
Sample treated like other experimental groups except no variable is used
control
If an experiment tested two variable at the same time, would the finding of the experiment be reliable? Explain
No, because you cant test 2 variables at once
Any information gathered from the internet can be assumed to be accurate
F, should be checked for accuracy
A way to record results and observations accurately
data table
Can you think of any tools or technologies that might have developed from peoples observations of natural phenomena
sonar, boats, microscopes, solar panels, medication
Used to represent things that happen too slowly or quickly to observe directly
model
Steps in forming your scientific answer
Problem, Hypothesis, Variables, Control, Analyze, Conclusions