Predictions and Evidence
A scientific prediction is a testable expected result, and evidence is the observation or data used to support, reject, or improve that prediction.
Practice This ConceptMain explanation
Teacher explanation
Science grows by making predictions and then checking them against evidence. If the result does not match, a good scientist does not hide the mismatch. The idea, method, or assumption is checked again. This habit makes science self-correcting and different from blind belief.
Example
If a student predicts that more sunlight will increase plant growth, the evidence may be measured plant height under different light conditions.
Simple analogy
Prediction is a promise to test; evidence gives the result.
Common confusion
Students may think a prediction is correct because it sounds logical, even when the recorded data does not support it.
Exam tip
When evidence disagrees with a prediction, write that the prediction needs revision instead of forcing the data to fit.
Answer writing and exam use
1-mark use
Write the exact meaning of predictions and evidence in one clean line.
2-mark use
Define predictions and evidence and add one example or condition.
3-mark use
Explain predictions and evidence, show the method or example, and mention the common mistake.
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