100+ Free NBE Sciences Practice Questions

Pass your National Board Examination (NBE) — Sciences Section exam on the first try — instant access, no signup required.

✓ No registration✓ No credit card✓ No hidden fees✓ Start practicing immediately

100+ Questions

100% Free

Loading practice questions...

2026 Statistics

Key Facts: NBE Sciences Exam

100

Practice Questions

OpenExamPrep

Scaled Passing Score

ICFSEB

~170

Items (150 Scored + 20 Pretest)

ICFSEB

~$285

Fee Per Section

ICFSEB

39%

Embalming Content Weight

ICFSEB Blueprint

1h 15m

Time Limit

Pearson VUE

The National Board Examination (NBE) Sciences section is administered by the International Conference of Funeral Service Examining Boards (ICFSEB, 'The Conference') and required by most US states for funeral director and embalmer licensure. The Sciences section has about 170 multiple-choice items (150 scored plus 20 unscored pretest items), is delivered at Pearson VUE in 1 hour 15 minutes, and requires a scaled score of 75 to pass. It is scored independently of the Arts section, and candidates must pass both. Content spans Embalming (~39%), Restorative Art (~23%), Preparation for Disposition (~21%), and Funeral Service Sciences such as microbiology, pathology, anatomy, and chemistry (~18%). This free prep includes 100 research-based practice questions with explanations and an AI tutor.

Sample NBE Sciences Practice Questions

Try these sample questions to test your NBE Sciences exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Formaldehyde preserves tissue primarily by which chemical action?

A.Dehydrating cells through osmosis only

B.Lowering tissue pH to a strongly acidic level

C.Dissolving lipids in the cell membrane

D.Cross-linking and denaturing proteins to form a gel that resists decomposition

Explanation: Formaldehyde is a preservative because it reacts with proteins, cross-linking their amino groups to denature and 'fix' them into an insoluble gel. This protein-bound state resists the autolytic and bacterial enzymes that drive decomposition.

2The preservative strength of an embalming fluid is most directly expressed by which value?

A.Its index

B.Its dilution factor

C.Its anatomical guide

D.Its dye content

Explanation: The index of an arterial fluid states the number of grams of pure formaldehyde gas dissolved in 100 mL of concentrated fluid, which quantifies its preservative strength. A higher index means a stronger, more preservative fluid before dilution.

3A humectant is added to an embalming solution mainly to do what?

A.Increase the formaldehyde index

B.Lower the pH of the solution

C.Retain or add moisture and counteract dehydration

D.Mask the odor of the fluid

Explanation: Humectants retain moisture and help prevent excessive dehydration of tissues during embalming. They are especially useful in dehydrated or emaciated cases to keep tissues supple and natural in appearance.

4Which supplemental chemical is used chiefly to remove blood discoloration and improve fluid distribution by helping to clear the vascular system?

A.A preservative (arterial) chemical

B.A mold-preventive chemical

C.A cavity chemical

D.A pre-injection (capillary wash) chemical

Explanation: Pre-injection chemicals are injected before the preservative solution to clear and prepare the vascular system, helping to remove blood and improve distribution and diffusion of the arterial fluid. They generally contain little or no formaldehyde.

5Cavity fluid (autopsy and cavity chemical) typically has which characteristic compared with arterial fluid?

A.A higher index for strong preservation of viscera

B.A lower index than arterial fluid

C.No preservative content at all

D.A neutral pH with no formaldehyde

Explanation: Cavity fluid is a high-index preservative chemical injected into the body cavities after aspiration to preserve and disinfect the visceral organs. Its strong concentration is needed because the viscera decompose rapidly and hold large microbial loads.

6In an emaciated or dehydrated body, the embalmer should generally use an arterial solution that is:

A.More concentrated than normal

B.Free of any humectant

C.More dilute than normal

D.Cold rather than tepid

Explanation: Emaciation and dehydration call for a MORE dilute arterial solution, often with a humectant, because the tissues need added moisture and there is less mass to preserve. A strong, concentrated fluid would further dehydrate already shrunken tissues.

7Which artery is most commonly chosen for primary injection in routine adult arterial embalming?

A.Femoral artery

B.Radial artery

C.Common carotid artery

D.Popliteal artery

Explanation: The common carotid artery is the most frequently used primary injection site because it is large, accessible in the neck, and gives good distribution to the head and body, with the accompanying internal jugular vein available for drainage.

8During arterial injection, drainage is most commonly taken from which vessel when the right common carotid is used for injection?

A.External iliac vein

B.Inferior vena cava

C.Great saphenous vein

D.Right internal jugular vein

Explanation: When the common carotid artery is raised for injection, the adjacent internal jugular vein is the preferred drainage site. Its large caliber and proximity make it efficient for removing blood and displaced fluid.

9The movement of embalming solution from the capillaries into the interstitial spaces and tissues is best described as:

A.Distribution

B.Drainage

C.Aspiration

D.Diffusion

Explanation: Diffusion is the passage of the preservative solution out of the capillaries through their walls into the interstitial fluid and tissue cells. Distribution is the prior step of moving fluid through the vascular pathways to reach those capillaries.

10Cavity embalming is performed by aspirating and then injecting the body cavities using which instrument?

A.An aneurysm hook

B.An arterial tube

C.A trocar

D.A groove director

Explanation: The trocar is a long, hollow, pointed instrument used to aspirate gases, liquids, and semisolids from the body cavities and then to inject cavity fluid into the hollow organs and spaces. It is the defining instrument of cavity treatment.

About the NBE Sciences Exam

The NBE Sciences section is one of the two sections of the National Board Examination required by most US states for funeral director and embalmer licensure. It tests embalming, restorative art, preparation for disposition, and funeral service sciences across about 170 multiple-choice items, with a scaled passing score of 75.

Assessment

Computer-based multiple-choice; ~170 items (150 scored + 20 pretest) in 1 hour 15 minutes, scaled passing score of 75; this practice bank is 100 selected-response items

Time Limit

1 hour 15 minutes

Passing Score

Scaled score of 75

Exam Fee

~$285 per section (International Conference of Funeral Service Examining Boards (ICFSEB), delivered via Pearson VUE)

NBE Sciences Exam Content Outline

39%

Embalming

Embalming chemistry and fluids, arterial and cavity embalming, circulation and fluid dynamics, and conditions affecting embalming (edema, jaundice, decomposition, refrigeration) plus special cases

23%

Restorative Art

Facial anatomy and proportions, feature restoration, restorative wax and cosmetics, color theory, and trauma reconstruction

21%

Preparation for Disposition

Sanitation and disinfection, dressing and casketing, cremation preparation, infectious disease precautions, and OSHA bloodborne pathogen standards

18%

Funeral Service Sciences

Microbiology, pathology, anatomy, chemistry, and public health applied to body preparation

How to Pass the NBE Sciences Exam

What You Need to Know

Passing score: Scaled score of 75
Assessment: Computer-based multiple-choice; ~170 items (150 scored + 20 pretest) in 1 hour 15 minutes, scaled passing score of 75; this practice bank is 100 selected-response items
Time limit: 1 hour 15 minutes
Exam fee: ~$285 per section

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

NBE Sciences Study Tips from Top Performers

1Prioritize Embalming (~39%) — embalming chemistry and fluids, arterial and cavity technique, fluid dynamics, and conditions like edema, jaundice, and decomposition dominate the Sciences section

2Memorize the meaning of the fluid index, dilution, and how to adjust solution strength for emaciation, edema, and jaundice cases

3Know vascular and surface anatomy used in embalming: common carotid and internal jugular drainage, the external iliac along the psoas major, the nine abdominal regions, and the standard trocar point

4For Restorative Art, learn the canons of proportion (facial thirds and fifths), color theory and complementary colors, and the steps for sealing, waxing, and cosmetizing damaged areas

5Master OSHA bloodborne pathogen and formaldehyde rules, standard precautions, and cremation safety such as pacemaker removal and positive identification

6Complete all 100 practice questions and review every miss with the AI tutor before sitting the exam

Frequently Asked Questions

What is the passing score for the NBE Sciences exam?

You need a scaled score of 75 to pass the NBE Sciences section. The Sciences and Arts sections are scored independently, and you must pass both to pass the National Board Examination.

How many questions are on the NBE Sciences section?

The Sciences section has about 170 multiple-choice items. Of these, 150 are scored and 20 are unscored pretest items being evaluated for future exams. You have 1 hour and 15 minutes to complete the section.

What topics does the NBE Sciences exam cover?

It covers Embalming (about 39%), Restorative Art (about 23%), Preparation for Disposition (about 21%), and Funeral Service Sciences such as microbiology, pathology, anatomy, and chemistry (about 18%).

Who administers the NBE Sciences exam and how much does it cost?

The NBE is administered by the International Conference of Funeral Service Examining Boards (ICFSEB), delivered at Pearson VUE test centers. The fee is approximately $285 per section.

Is the NBE Sciences exam required for funeral director licensure?

Yes. Most US states require the National Board Examination for funeral director and/or embalmer licensure. The Sciences section focuses on the scientific and technical side of embalming and body preparation, while the Arts section covers funeral directing, law, and operations.

Is this free NBE Sciences practice test comprehensive?

Yes — it includes 100 research-based practice questions across all four Sciences content domains with detailed explanations for every answer, plus a free AI tutor. All content is free forever, updated for 2026.