Science Practice Test

This practice test is not related to the GED Ready Test – The Official Practice Test, produced and distributed by GED Testing Service LLC.

1. Bill and Bob are biological twins who were adopted as babies. Their adoptive father and his father and his father (Billy and Bob’s father, paternal grandfather, and paternal great-grandfather) all suffered from early-onset fingernail greening. Which of the following statements is most likely to be the case?

A.There is no doubt both Bill and Bob’s nails will be green by age twenty.

B.It is likely that both twins will suffer from green nails at an early age.

C.Being adopted, it’s unlikely that Bill or Bob are at risk.

D.If they take proper precautions, neither of them need to worry about the color of their nails.

Question 1 of 10

2. Tides are mostly caused by the

A.Sun’s pull of gravity on the earth

B.Moon’s pull of gravity on the earth

C.The rotation of the earth

D.The orbit of the earth

Question 2 of 10

3. Which system enables the movement of the body?

A.muscular

B.circulatory

C.reproductive

D.endocrine

Question 3 of 10

4. Heat generally

A.Flows from hot to cold

B.Flows from cold to hot

C.Flows within and not between objects

D.Does not move

Question 4 of 10

5. When the northern hemisphere is experiencing spring, the southern hemisphere is experiencing

A.Spring

B.Summer

C.Fall

D.Winter

Question 5 of 10

6. How many chambers does the heart have?

A.four

B.two

C.three

D.I don't know

Question 6 of 10

7. After food is eaten, molecules in the digestive system break proteins down into amino acids, fats into fatty acids, and carbohydrates into simple sugars. These molecules are called …

A.fiber

B.proteins

C.enzymes

D.ATP

Question 7 of 10

8. Every cell in your body uses DNA as…

A.protection of your body from bacteria

B.a framework to which your muscles and organs can connect

C.a barrier to viruses and bacteria

D.an instruction manual

Question 8 of 10

9. Humans have 23 pairs of chromosomes, for a total of ...

A.It depends

B.69 chromosomes.

C.23 chromosomes.

D.46 chromosomes.

Question 9 of 10

10. How are chromosomes inherited?

A.one copy of each chromosome is inherited from the female parent and the other from the male parent.

B.chromosomes are inherited from one parent

C.chromosomes are inherited from one parent and one grandparent

D.It depends

Question 10 of 10

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This test is a part of our GED Science Practice Test module.

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Last Updated on September 13, 2024.