Quiz on Scientific Concepts and Structures

What is the variable that is changed by the scientist in an experiment called?

• Dependent variable

• Independent variable

• Control variable

• Constant

Tags

NGSS.MS-PS2-2

Which variable is measured in an experiment?

• Independent variable

• Dependent variable

• Control variable

• Constant

Tags

NGSS.MS-PS1-2

What is a control in an experiment?

• The variable that is changed

• The variable that is measured

• The standard for comparison

• The result of the experiment

Which of the following is kept the same throughout an experiment?

• Control

• Constant

• Dependent variable

• Independent variable

Tags

NGSS.MS-PS2-2

Which of the following is a pure substance?

• Air

• Salt water

• Oxygen

• Soil

Which of the following is a mixture?

• Water (H20)

• Sodium chloride (table salt, NaCl)

• Bronze

• Carbon dioxide (CO2)

Which of the following is a homogeneous mixture?

• Salad

• Salt water

• Sand and iron filings

• Granite

Which of the following is a heterogeneous mixture?

• Air

• Vinegar

• Trail mix

• Brass

Which of the following is an element?

• Water

• Carbon

• Salt

• Sugar

Which of the following is a compound?

• Oxygen

• Iron

• Water

• Gold