Science STAAR (2018 questions)

Front

What property of soils is examined when measuring how well different soils retain water?

Back

Soil permeability and water retention.

Front

What is a food chain?

Back

A sequence that shows how energy is transferred from one organism to another in an ecosystem.

Front

What is the difference between complete and incomplete metamorphosis?

Back

Complete metamorphosis includes four stages: egg, larva, pupa, and adult. Incomplete metamorphosis includes three stages: egg, nymph, and adult.

Front

What is the role of producers in a food web?

Back

Producers, like plants, convert sunlight into energy through photosynthesis, forming the base of the food web.

Front

What is the significance of conducting multiple trials in an experiment?

Back

Conducting multiple trials increases the reliability of the results by minimizing the impact of random errors.

Front

What is energy transfer in a food web?

Back

Energy transfer refers to the flow of energy from one organism to another through consumption.

Front

What is the function of a digital clock?

Back

A digital clock displays time using electronic signals and does not produce sound or light energy.

Front

What is the importance of habitat in the life cycle of organisms?

Back

Habitat provides the necessary resources and conditions for organisms to grow, reproduce, and thrive.

Front

What is the difference between a hypothesis and a conclusion in scientific experiments?

Back

A hypothesis is a testable prediction, while a conclusion is the result of analyzing the data collected during the experiment.

Front

What is the purpose of a control group in an experiment?

Back

A control group serves as a standard for comparison, helping to isolate the effects of the independent variable.