GED
Science Test 2026 | Updated Practice Questions &
Answers | GED Science Exam Prep
THIS EXAM INCLUDES:
✓ GED Science practice questions and answers
✓ Updated 2026 GED Science exam preparation material
✓ Detailed explanations and rationales
, GED Science Test 2026 | Updated
Practice Questions & Answers | GED
Science Exam Prep
1. Heat capacity of water and sand
A. Water has about 5× greater heat capacity than sand.
B. Sand has about 5× greater heat capacity than water.
C. Water and sand have equal heat capacity.
D. Sand has no heat capacity.
Answer: A
Rationale: Water resists temperature change more than sand, so ocean
organisms experience more stable temperatures.
2. Human Genome Project (HGP)
A. Gene number was underestimated.
B. Gene number had been overestimated.
C. Gene number equals chromosome number.
D. Humans have no noncoding DNA.
Answer: B
Rationale: Early gene-number estimates were much higher than the
actual number of protein-coding genes.
,3. Hammer and feather drop on the Moon
A. Feather has more kinetic energy because it is lighter.
B. Both have equal kinetic energy.
C. Hammer has more kinetic energy because it has more mass.
D. Feather has more kinetic energy because it falls faster.
Answer: C
Rationale: In a vacuum, both fall with the same acceleration; KE =
½mv², so greater mass means greater kinetic energy.
4. Natural selection
A. Humans choose traits.
B. Organisms change during life to fit the environment.
C. All organisms survive equally.
D. Organisms suited to the environment survive and produce more
offspring.
Answer: D
Rationale: Natural selection is differential survival and reproduction.
5. Artificial selection
A. Human-imposed selection.
B. Environmental selection.
C. Random mutation.
D. Sexual selection only.
, Answer: A
Rationale: Artificial selection is driven by human choice.
6. Scientific measurement for fly larvae length
A. Meter.
B. Millimeter.
C. Kilometer.
D. Liter.
Answer: B
Rationale: Larvae are small, so millimeter is the appropriate metric
unit.
7. Fruit fly graph
A. 1
B. 5
C. 11
D. 10
Answer: C
Rationale: The source lists option 11 as the correct graph
representation.
8. Chimpanzee and bonobo
A. Chimpanzee and gorilla.
B. Bonobo and orangutan.
Science Test 2026 | Updated Practice Questions &
Answers | GED Science Exam Prep
THIS EXAM INCLUDES:
✓ GED Science practice questions and answers
✓ Updated 2026 GED Science exam preparation material
✓ Detailed explanations and rationales
, GED Science Test 2026 | Updated
Practice Questions & Answers | GED
Science Exam Prep
1. Heat capacity of water and sand
A. Water has about 5× greater heat capacity than sand.
B. Sand has about 5× greater heat capacity than water.
C. Water and sand have equal heat capacity.
D. Sand has no heat capacity.
Answer: A
Rationale: Water resists temperature change more than sand, so ocean
organisms experience more stable temperatures.
2. Human Genome Project (HGP)
A. Gene number was underestimated.
B. Gene number had been overestimated.
C. Gene number equals chromosome number.
D. Humans have no noncoding DNA.
Answer: B
Rationale: Early gene-number estimates were much higher than the
actual number of protein-coding genes.
,3. Hammer and feather drop on the Moon
A. Feather has more kinetic energy because it is lighter.
B. Both have equal kinetic energy.
C. Hammer has more kinetic energy because it has more mass.
D. Feather has more kinetic energy because it falls faster.
Answer: C
Rationale: In a vacuum, both fall with the same acceleration; KE =
½mv², so greater mass means greater kinetic energy.
4. Natural selection
A. Humans choose traits.
B. Organisms change during life to fit the environment.
C. All organisms survive equally.
D. Organisms suited to the environment survive and produce more
offspring.
Answer: D
Rationale: Natural selection is differential survival and reproduction.
5. Artificial selection
A. Human-imposed selection.
B. Environmental selection.
C. Random mutation.
D. Sexual selection only.
, Answer: A
Rationale: Artificial selection is driven by human choice.
6. Scientific measurement for fly larvae length
A. Meter.
B. Millimeter.
C. Kilometer.
D. Liter.
Answer: B
Rationale: Larvae are small, so millimeter is the appropriate metric
unit.
7. Fruit fly graph
A. 1
B. 5
C. 11
D. 10
Answer: C
Rationale: The source lists option 11 as the correct graph
representation.
8. Chimpanzee and bonobo
A. Chimpanzee and gorilla.
B. Bonobo and orangutan.
