Science 8 Final Exam Review

Which of the following best describes an independent variable in an experiment?

• The variable that is being tested/measured

• The variable that is changed in an experiment

• The result of the dependent variable

• The variable that remains constant

What is the correct format for writing a hypothesis?

• "If (you do something)...then (this will happen)..."

• "When (this happens)...then (you do something)..."

• "If (this happens)...then (you do something)..."

• "When (you do something)...then (this will happen)..."

Tags

NGSS.MS-PS2-2

Which of the following is a correct definition of a genotype?

• Physical characteristic of an organism

• Alternate form of a gene

• Genetic makeup of an organism

• Represented by a lowercase letter

What does a homozygous genotype consist of?

• Two different alleles, one dominant and one recessive

• Two of the same alleles

• One dominant allele

• One recessive allele

In a Punnett square, what is the probability of getting a genotype of Tt if the parents are TT and Tt?

• 0%

• 25%

• 50%

• 100%

Which of the following is NOT a method for separating mixtures?

• Filtration

• Distillation

• Evaporation

• Combustion

What is the formula for calculating the volume of a rectangle?

• V = Length x Width x Height

• V = mass * density

• V = Length - Width

Which phase of matter has particles that are closely packed together?

• Solid

• Liquid

• Gas

• Plasma

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What tool is used to measure mass?

• ruler

• graduated cylinder

• triple beam balance

• calculator

How is density calculated?

• Density = Mass * Volume
• Density = Weight / Volume
• Density = Volume / Mass
• Density = Mass / Volume