A student observes that a plant in a sunny window grows taller than a plant in a dark closet. Which of the following statements is the 'Claim' in their scientific argument?

The plant in the sun grew 10 cm.

Plants require sunlight to grow.

The plant in the closet grew 2 cm.

The experiment used two identical pots.

Which statement best demonstrates a complete and strong scientific argument using the CER framework?

The substance is an acid. I know this because the litmus paper turned red, and acids turn litmus paper red.

The litmus paper turned red. This means the substance is an acid. This is a chemical property of acids.

Claim: The substance is an acid. Evidence: It is a sour-tasting liquid.

Acids turn litmus paper red. I put litmus paper in the substance, and it turned red. Therefore, it is an acid.

To present the raw data and measurements collected during an investigation.

To provide a one-sentence answer to the initial scientific question.

To connect the evidence to a broader scientific principle, explaining why the data supports the claim.

To summarize the methods and materials used in the experiment.

Planets at a similar distance from their star often have liquid water.

Therefore, the planet is a good candidate for harboring life.

The presence of liquid water is a key ingredient for life as we know it.

Spectrometer readings detected water vapor and surface reflections consistent with a liquid body.