Topic Test Answers

What is the difference between an observation and an inference?

A student is conducting an experiment to determine how far a ball will roll down a ramp based on the angle of incline.

Explain how the first three steps of scientific inquiry are related.

A dependent variable isa.directly changed by the experimenter.b.manipulated by changes to the independent variable.c.a variable that is kept constant.d.a variable that is used as a control.

Which of the following is the correct order for the steps of scientific inquiry?a.observe, question, hypothesize, analyze, experiment, formulate a conclusionb.question, observe, hypothesize, experiment, analyze, formulate a conclusionc.question, hypothesize, observe, experiment, analyze, formulate a conclusiond.observe, question, hypothesize, experiment, analyze, formulate a conclusion

Which of the following is an observation and not an inference?a.A cup with steam coming from it will be hot to the touch.b.Dark clouds in the sky will mean rain later in the afternoon.c.Bubbles form when two chemicals are mixed together.d.A plastic bag moving along the ground is being pushed by the wind.

A scientific theory _______.a.describes what occurs every time in a given situationb.is not validated by experimentationc.can never be changedd.is an explanation for a set of events

A student is conducting an experiment to determine how far a ball will roll down a ramp based on the angle of incline.

Which type of graph is best for analyzing quantitative dependent and independent variables?a.line graphb.pie graphc.bar graphd.surface graph

How is a scientific law different than a scientific theory?

Discuss the variations in foot shape and the type of shoes that are required for each foot shape.

Explain why exercise programs must increase in difficulty and duration over time to remain effective.

Explain the tangible physical benefits of warming up for and cooling down from a workout activity.

Describe how exercise can positively affect your environmental health.

Exercise has no positive effects on the nervous system.