Using Evidence to Support Explanations Flashcards

1️⃣ Familiarise yourself with the flashcards:

  • Look through all the flashcards to see what's on both sides.
  • Make sure you understand the information on each card. If something's unclear, click the link to the revision notes at the bottom of the page for more details.

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3️⃣ Consistently Review and Practice:

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Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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In science, what is meant by evidence?

Evidence is information from observations or measurements that can be checked by others.

How do scientists use evidence to test an explanation?

They see if the evidence matches the predictions made by the explanation.

What does it mean if evidence supports an explanation?

It means the evidence fits the explanation and makes it more likely to be correct.

What is reliable evidence?

Reliable evidence gives similar results when the test is repeated in the same way.

What is valid evidence in a scientific test?

Valid evidence comes from a fair test that measures what it is meant to measure and controls other variables.

Why is a large sample size better evidence than a small one?

A large sample size is less affected by chance, so it gives stronger and more trustworthy evidence.

Why do scientists like to use control groups when collecting evidence?

A control group shows what happens without the factor being tested, so scientists can link changes to that factor.

What is an anomalous result, and why does it matter for evidence?

An anomalous result is one that does not fit the pattern in the rest of the data, and it may weaken the evidence until it is checked.

Why do scientists look for patterns or trends in data when using it as evidence?

Patterns or trends show how one factor changes with another, which can support or challenge an explanation.

Why is one small study usually not enough to fully support a scientific explanation?

One small study may be wrong by chance or fault, so more evidence from other studies is needed to support the explanation strongly.

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