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Science 4-8 Practice Test 2 of 2

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Which of the following is the union of an egg and sperm that creates a new cell or set of cells distinct from the parents?

a)

Asexual reproduction

b)

Mitosis

c)

Sexual reproduction

d)

Gamete

2.

A high school geology teacher would like their student to develop some basic observational skills for identifying minerals. Which of the following activities would best support that goal?

a)

Giving students a textbook reading on rock types

b)

Inviting a geologist to speak with the class

c)

Have students use a mineral test kit to observe, test, and identify an unknown sample

d)

Ask students to color in a diagram on mineral types

3.

Which of these describes an ineffective teaching and learning strategy?

a)

Discouraging talking or discussion

b)

Asking open-ended questions

c)

Encouraging student input through voice and choice

d)

Developing a shared classroom learning agreement

4.

Which cell structure below only appears in the plant cell and not the animal cell?

a)

Mitochondria

b)

Vacuole

c)

Chloroplast

d)

Cell membrane

5.

An exit ticket is an example of this type of assessment, which is used to measure student understanding and progress that is not evaluative or graded. What is this type of assessment called?

a)

Formal assessment

b)

Informal assessment

c)

Formative assessment

d)

Summative assessment

6.

Which term describes the relative proportions of different genotypes in a population?

a)

Genotypic frequencies

b)

Phenotypic frequencies

c)

Mendelian ratios

d)

Inheritance patterns

7.

Which energy source cannot be replenished within a human lifetime?

a)

Coal

b)

Hydropower

c)

Solar power

8.

Which of the following is a compound machine rather than a simple machine?

a)

Lever

b)

Wedge

c)

Pulley

d)

Scissors

9.

Which of the following correctly orders the parts of a body in order from most simple to most complex?

a)

Cells → Tissues → Organs → Organ systems → Organisms

b)

Cells → Organs → Organ systems → Tissues → Organisms

c)

Organisms → Organ systems → Organs → Tissues → Cells

d)

Tissues → Organs → Organisms → Organ systems → Cells

10.

Which layer of the atmosphere is where clouds and weather occur?

a)

Stratosphere

b)

Mesosphere

c)

Troposphere

d)

Thermosphere

11.

What type of energy makes a drum's surface vibrate when struck?

a)

Nuclear energy

b)

Radiant energy

c)

Sound energy

12.

What is the main factor that can alter the Hardy-Weinberg Equilibrium in a population?

a)

Gene flow

b)

Genetic drift

c)

Natural selection

d)

Mutations

13.

What type of plate boundary occurs when Earth's tectonic plates collide or push against each other?

a)

Convergent boundary

b)

Divergent boundary

c)

Transform boundary

d)

Passive boundary

14.

Which branch of mathematics is used to analyze random phenomena where outcomes cannot be determined before they occur?

a)

Statistical analysis

b)

Probability

c)

Algebra

d)

Calculus

15.

Drug use can seriously disrupt brain function in childhood and adolescence. It can impair a student’s ability to remember, learn, find motivation, use proper judgment and control their behavior. What program can help students in school find connectedness, community and develop good relationships that can help both prevent engagement in risky behavior, but also help make good choices and decision-making?

a)

Alcoholics anonymous (AA)

b)

School counselor meetings

c)

4-H program

d)

Substance abuse prevention program

16.

Which property of an object remains the same whether measured on Earth or the Moon?

a)

Mass

b)

Weight

c)

Density

d)

Internal matter

17.

This important sheet consists of safety information for handling, storing and transporting of chemicals used in the classroom. Protective measures and properties of each chemical used in the class lab should also be provided on this resource. What is this resource called?

a)

GHS

b)

SDS

c)

OSHA

d)

NSTA

18.

What force makes it harder to slide a heavy box across carpet than across a smooth floor?

a)

Unbalanced force

b)

Velocity

c)

Friction

d)

Acceleration

19.

Which type of rock forms through the compaction and cementation of weathered and eroded sediments, as seen in sandstone and coal?

a)

Igneous

b)

Metamorphic

c)

Sedimentary

d)

Conglomerate

20.

Which describes ineffective feedback?

a)

Specific

b)

Timely

c)

Addressing areas of growth only

d)

Student involvement

21.

Which of these resources requires millions of years to replenish once consumed?

a)

Natural gas

b)

Solar

c)

Wind

d)

Water

22.

What type of ocean phenomenon is represented in this image?

a)

Tides

b)

Waves

c)

Tidal bore

d)

Tsunami

23.

Which of the following statements accurately describes exponential population growth?

a)

The population grows at a steady, constant rate over time.

b)

The population growth rate decreases as the population size increases.

c)

The population growth rate increases as the population size increases.

d)

The population growth rate fluctuates randomly over time.

24.

What is the main principle behind constructing phylogenetic trees?

a)

Genetic drift

b)

Shared ancestry

c)

Geographic distribution

d)

Natural selection

25.

The sun is predominantly composed of which two elements?

a)

Hydrogen and Oxygen

b)

Hydrogen and Helium

c)

Iron and Helium

d)

Helium and Oxygen

26.

Which state of matter expands to completely fill any container it's placed in?

a)

Solid

b)

Liquid

c)

Gas

d)

Plasma

27.

Which of the following correctly identifies the products of meiosis?

a)

4 daughter cells with haploid DNA, genetically unique from the parent cell

b)

2 daughter cells with diploid DNA, genetically identical to the parent cell

c)

2 daughter cells with haploid DNA, genetically unique from the parent cell

d)

4 daughter cells with diploid DNA, genetically identical to the parent cell

28.

Which optical instrument uses a convex lens system primarily to magnify objects beyond their original size?

a)

Microscope lens

b)

Camera lens

c)

Eye lens

d)

Bifocal lens

29.

Which of the following describes the composition of a DNA molecule?

a)

A. A ribose sugar, phosphate group, and the nitrogenous bases uracil, thymine, adenine, and guanine

b)

B. A deoxyribose sugar, a phosphate group, and the nitrogenous bases thymine, adenine, cytosine and guanine

c)

C. A deoxyribose sugar, a phosphate group, and the nitrogenous bases uracil, adenine, cytosine and guanine

d)

D. A ribose sugar, a phosphate group, and the nitrogenous bases uracil, adenine, cytosine and guanine

30.

What is the purpose of using models in science?

a)

To simplify complex concepts

b)

To complicate scientific explanations

c)

To replicate the actual size of the phenomenon

d)

To eliminate uncertainties in scientific experiments

31.

The scientific inquiry that is simply an experiment in which all factors are held constant except for the independent variable is known as:

a)

controlled experiment.

b)

descriptive study.

c)

comparative data analysis.

d)

case study.

32.

Which assessment is an example of a summative assessment?

a)

End of a unit exam

b)

Exit ticket

c)

An interview

d)

A quick tech based game

33.

Which of the following units should be used when students are measuring longer distances in science class?

a)

Miles

b)

Centimeters (cm)

c)

Astronomical units (AU)

d)

Meters (m)

34.

Which of the following introduces new alleles into a population?

a)

Genetic drift

b)

Non-random mating

c)

Gene flow

d)

Mutation

35.

Which type of star is characterized by an expanded, cooler outer layer that gives it a reddish appearance and much larger size than our sun?

a)

Red Giant

b)

Supernova

c)

Stellar Nebula

d)

Black Hole

36.

Approximately how old is planet Earth?

a)

4.6 billion years old

b)

13.7 billion years old

c)

1 million years old

d)

545 million years old

37.

What type of heat transfer causes hot air to rise and cold air to sink in a room?

a)

Conduction

b)

Convection

c)

Radiation

d)

Geothermal

38.

A small number of individuals are isolated by being blown off the mainland to an island, they mate and reproduce but will have little genetic variation within the resulting population. This process exemplifies:

a)

gene flow.

b)

non-random mating.

c)

natural selection.

d)

founder effect.

39.

When light bounces off a mirror, which property of light is primarily demonstrated?

a)

Reflection

b)

Absorption

c)

Transmission

d)

Refraction

40.

In an 8th grade science lesson about sharks, students learn that these creatures first appeared in the fossil record about 420 million years ago. The shark body design has changed very little since then, suggesting they are well-adapted to their environment. Which unifying science concept does this lesson demonstrate?

a)

Systems

b)

Scale and proportion

c)

Evolution

d)

Cycles

41.

Which human body system is in charge of processing food for cellular nutrition and energy?

a)

Circulatory system

b)

Digestive system

c)

Immune system

d)

Muscular system

42.

Which of the following is an example of an assessment for student learning?

a)

Tests and quizzes

b)

Project

c)

Diagnostic testing

d)

Lab reports

43.

What type of energy increases when a book is lifted from the floor to a table?

a)

Radiant energy

b)

Thermal energy

c)

Gravitational energy

d)

Nuclear energy

44.

What type of rock forms when existing rocks are buried deep within the Earth and exposed to intense heat and pressure over time?

a)

Igneous

b)

Metamorphic

c)

Sedimentary

d)

Conglomerate

45.

Which type of inquiry-based learning strategy is described by this statement?

"Students are given an open question for which they design the investigation method to reach a conclusion; this is usually done in groups."

a)

Confirmation Inquiry

b)

Structured Inquiry

c)

Guided Inquiry

d)

Open Inquiry

46.

Which type of severe weather system develops from low pressure systems over warm ocean waters, gaining energy through thunderstorm activity?

a)

Tornado

b)

Hurricane

c)

Blizzard

d)

Snowstorm

47.

Which law explains why a pendulum continues swinging back and forth with minimal energy input?

a)

Law of Inertia

b)

Law of Mass and Acceleration

c)

Law of Motion

d)

Law of E = MC2

48.

Which system produces and releases hormones that regulate metabolism, growth, and reproduction?

a)

Immune system

b)

Nervous system

c)

Endocrine system

d)

Reproductive system

49.

Which of these practices violates scientific ethical standards?

a)

Honesty in reporting of scientific data

b)

Careful transcription and analysis of scientific results to avoid error

c)

Withholding methods, data and interpretation of results from publication

d)

Moral obligations to society in general, and, in some disciplines,

responsibility in weighing therights of human and animal subjects

50.

A teacher uses a mnemonic to help students remember the order of the planets in the solar system. The mnemonic is, "My Very Eager Mother Just Served Us Nine Pizzas". Which planet is represented by the word "Mother"?

a)

Mercury

b)

Mars

c)

Earth

d)

Saturn