Evidence Changes Scientific Ideas

What is scientific evidence?

Why can a scientific explanation change over time?

Give one example of evidence that could make scientists revise an idea.

Explain the difference between an opinion and evidence-based reasoning.

Why is repeatable evidence stronger than a single observation?

What does it mean to reinterpret existing evidence?

Why should scientists be willing to update a model?

Name one limitation that an old scientific model might have.

How can improved technology lead to new scientific evidence?

Write one sentence explaining why changing a scientific idea can be a strength of science.

Describe a situation where new evidence causes scientists to change an earlier explanation. Include the old idea, the new evidence and the improved explanation.

Compare a scientific claim supported by strong evidence with a claim supported mainly by personal belief. How would you tell the difference?

A student says, “Science keeps changing, so it cannot be trusted.” Write a response that explains why change can make scientific knowledge stronger.

Explain how a new instrument, such as a microscope, telescope, satellite or sensor, can change what scientists understand.

Choose one scientific model and explain how it can be useful even if it is not a perfect copy of reality.

Describe how peer review, repeated testing and open discussion help scientists decide whether a new idea should replace an old one.

Explain why scientists may disagree about the meaning of evidence before reaching a stronger conclusion.

Use an example from cells, geology, energy or matter to show how evidence can support or challenge a scientific idea.

Create a short timeline showing how one scientific idea changed over time. Include at least three stages and the evidence behind the change.

Evaluate this claim: “Once a scientific theory is accepted, it should never be questioned.” State your position and justify it with evidence-based reasoning.