Lesson 1
The reseacher's prediction was her _________.
Hypothesis.
An appropriate research question is a ________ ________.
Testable hypothesis.
________ _____ is the process of inspecting and interpreting data to discover useful information for drawing conclutions.
Analysing data.
Organizing the data into a table, however, allows the information to be analyzed; scientists can use the information to determine ________ and relationships.
Trends.
Linear relationships are also called _______ _________.
Direct relationships.
The ________ ________ is the variable that changes because of changes in the independant varible.
Dependant varible.
A testable hypothesis also needs to be _________, meaning that it is possible to reach results that prove the hypothesis to be false.
Falsifiable.
______ is an approach that is motivatedvby one's opinion or belief instead of by evidence.
Bias.
Because the line is not a straight line, this graph demonstrates a ________ __________.
Nonlinear relationship.
It is important for te experiment to be a _____ _____.
Fair test.
The ________ _______ is the varible changed by the reseacher.
Independant varible.
The procedures for the experiment have to be designed to follow the _______ ______.
Scientific method.
A _________ is the answer to a testable question that is supported by collected evidence and data.
Conclusion.
A graph that shows the relationship between two varibles as a straight line demonstrates a _______ _________.
Linear relationship.
This trail was a _______, to take measurments on a sample without changing the independent variable.
Control.
When the researcher said that the heartbeats increased because of reduce oxygen in the water, she made a ________.
Inference.
During recruiting, they select only children between ages 6-10. This is called _________ ___ ______, during which every condition that is different is accounted for and, if possible, held constant.
Controlling the varibles.
The table provides ________ that needs to be interpreted.
Evidence.
_______ _________ can be represented by the equation y=k/x, where the x values increase faster than the y values decrease.
Inverse relationship.
The _______ in the experiment were the temperature of the water and the heart rate of the daphina.
Variables.
Details about an experiment will change, depending on the topic, but a good __________ ______ will have the same main elements.
Investigation design.
Every experient involves many ________.
Limitations.
Research is considered _______ if the same process can be repeated by other scientists under the same conditions to produce the same results.
Reliable.
An important part of a scientific investigation is making a ________ based on data gathered.
Prediction.
Whe the researcher counted the heartbeats of the daphnia, she made an _________.
Observation.