8th Grade Science

What is the independent variable in an experiment?

• The variable that is dependent

• The variable that remains constant

• The variable that is manipulated

• The variable that is measured

Tags

NGSS.MS-PS1-2

Which tool is used to measure mass?

• Graduated cylinder

• Triple beam balance

• Thermometer

• Ruler

What is the unit of measure for volume?

• Meter

• Second

• Gram

• Liter

What is the definition of density?

• The amount of space an object occupies

• The mass of a substance per unit of volume

• The length of an object

• The energy of motion

What is a characteristic of a solid?

• Has a definite shape and volume

• Changes shape and volume constantly

• Has a definite volume but no definite shape

• Has no definite shape or volume

What is the role of a control in an experiment?

• To manipulate the constants

• To compare the results

• To measure the dependent variable

• To change the independent variable

Which of the following is a chemical property?

• Color

• Mass

• Density

• Flammability

What happens during a chemical change?

• The substance dissolves

• The composition remains the same

• A new substance is created

• The shape changes but not the composition

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the charge of a proton?

• Variable

• Positive

• Negative

• Neutral

What is the atomic number of an element?

• The number of neutrons

• The sum of protons and neutrons

• The number of protons

• The number of electrons