NGSS.3-5-ETS1-3

When conducting an experiment, in order to get reliable results, it is important to:

• Disregard results that do not match your hypothesis
• Test many different variables at the same time
• Test all forces at the same time
• Repeat the investigation several times

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NGSS.3-5-ETS1-3

Testing a hypothesis often involves a(n):

• answer
• experiment
• problem
• safety check

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NGSS.3-5-ETS1-3

Which of the following should be a goal of a scientific investigation?

• to help the scientist make money

• to make sure the scientist is correct

• to help the scientist solve a problem

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NGSS.3-5-ETS1-3

Which brand of battery last the longest?

• Testable

• Not testable

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NGSS.3-5-ETS1-3

The parts of an investigation that remain the same so that the dependent variable can be measured.

• independent variable

• dependent variable

• hypothesis

• control variable

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NGSS.3-5-ETS1-3

You need to collect ____________ in your experiment that supports your hypothesis.

• graphs

• plants

• microscopes

• data

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NGSS.3-5-ETS1-3

The _______________ during an experiment is what changes or is different.

• hypothesis

• conclusion

• variable

• conclusion

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NGSS.3-5-ETS1-3

Estudiantes llenan tres embudos con arena. Agregan agua a cada embudo y registran cuánto tiempo se toma para drenar 100 ml de agua en un vaso debajo del embudo. La tabla muestra sus resultados.

¿Cuál de estos explica por qué los estudiantes usaron un total de tres embudos?

• para comparar qué tan rápido los diferentes materiales drenan el agua

• para ver si la temperatura cambiará qué tan rápido los materiales drenan el agua

• para ver qué líquido va a drenar más rápido

• para detectar errores cometidos al medir

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NGSS.3-5-ETS1-3

The ONE thing you change in an experiment.

• constant variable

• controlled variable

• dependent variable

• independent variable

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NGSS.3-5-ETS1-3

All the things that have to stay the same in an experiment (except for the one thing you change).

• constant variable

• controlled variable

• dependent variable

• independent variable

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NGSS.3-5-ETS1-3