Worksheet on puberty changes for students to identify gender-specific and shared physical developments.

The task involves identifying which puberty changes occur in males, females, or both. Below is the completed table with explanations for each entry:

Puberty Changes Table

| Puberty Changes | Females only | Males only | Both |
|-----------------------------------|------------------|----------------|----------|
| Periods may begin | * | | |
| Menstrual period begins | * | | |
| Mood swings may occur | | | * |
| Insulators get wider | * | | |
| Hips get wider | * | | |
| Public and underarm hair grows | | | * |
| Cysts may develop | * | | |
| Breasts get larger | * | | |
| Voice gets deeper | | * | |
| Testicles grow larger | | * | |
| Penis grows larger | | * | |
| Nocturnal emissions | | * | |
| Hair grows on the face | | * | |
| Wet dreams start occurring | | * | |
| Voice changes and deepens | | * | |

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Explanation of Each Entry:

1. Periods may begin / Menstrual period begins
- These are changes specific to females. Males do not experience menstruation.

2. Mood swings may occur
- Both males and females can experience mood swings during puberty due to hormonal fluctuations.

3. Insulators get wider / Hips get wider
- These changes are specific to females. Wider hips are part of the female body's preparation for childbirth.

4. Public and underarm hair grows
- This change occurs in both males and females as a result of increased hormone production.

5. Cysts may develop
- This is a change specific to females, often related to hormonal changes affecting the skin (e.g., acne).

6. Breasts get larger
- This is a change specific to females. Breast development is a key feature of female puberty.

7. Voice gets deeper
- This is a change specific to males. The larynx grows larger, causing the voice to deepen.

8. Testicles grow larger / Penis grows larger
- These changes are specific to males. The reproductive organs undergo significant growth during puberty.

9. Nocturnal emissions
- This is a change specific to males. It refers to the release of semen during sleep, often called "wet dreams."

10. Hair grows on the face
- This is a change specific to males. Facial hair growth is driven by testosterone.

11. Wet dreams start occurring
- This is a change specific to males. Wet dreams are nocturnal emissions accompanied by dreams.

12. Voice changes and deepens
- This is a change specific to males. As mentioned earlier, the larynx grows, causing the voice to deepen.

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Final Answer:

The completed table is shown above. Each row has been marked with an asterisk (*) in the appropriate column(s) based on whether the change occurs in females only, males only, or both.

Boxed Final Answer:
\boxed{
\begin{array}{|l|c|c|c|}
\hline
\textbf{Puberty Changes} & \textbf{Females only} & \textbf{Males only} & \textbf{Both} \\
\hline
\text{Periods may begin} & * & & \\
\text{Menstrual period begins} & * & & \\
\text{Mood swings may occur} & & & * \\
\text{Insulators get wider} & * & & \\
\text{Hips get wider} & * & & \\
\text{Public and underarm hair grows} & & & * \\
\text{Cysts may develop} & * & & \\
\text{Breasts get larger} & * & & \\
\text{Voice gets deeper} & & * & \\
\text{Testicles grow larger} & & * & \\
\text{Penis grows larger} & & * & \\
\text{Nocturnal emissions} & & * & \\
\text{Hair grows on the face} & & * & \\
\text{Wet dreams start occurring} & & * & \\
\text{Voice changes and deepens} & & * & \\
\hline
\end{array}
}