Worksheet for identifying dependent and independent variables in scientific hypotheses.

Problem Explanation:

The task involves analyzing a series of hypotheses and converting them into questions. For each hypothesis, you need to identify the independent variable (the factor being manipulated or changed) and the dependent variable (the factor being measured or observed as a result of the change in the independent variable).

Solution:

#### Hypothesis 6:
- Hypothesis: If plants are watered, then growth height will increase.
- Question: What is the effect of watering plants on their growth height?
- Independent Variable: Watering plants (This is what is being manipulated.)
- Dependent Variable: Growth height (This is what is being measured as a result of watering.)

#### Hypothesis 7:
- Hypothesis: If chocolate is given to teachers, then the amount of homework will decrease.
- Question: Does giving chocolate to teachers decrease the amount of homework?
- Independent Variable: Giving chocolate to teachers (This is what is being manipulated.)
- Dependent Variable: Amount of homework (This is what is being measured as a result of giving chocolate.)

#### Hypothesis 8:
- Hypothesis: If trees have leaves, then bird nests will increase.
- Question: Does the presence of leaves on trees affect the number of bird nests?
- Independent Variable: Leaves on trees (This is what is being considered as a factor.)
- Dependent Variable: Number of bird nests (This is what is being measured as a result of the presence of leaves.)

#### Hypothesis 9:
- Hypothesis: If acid rain is in water, then fish population will increase.
- Question: Does acid rain in water affect the fish population?
- Independent Variable: Acid rain in water (This is what is being manipulated or considered.)
- Dependent Variable: Fish population (This is what is being measured as a result of acid rain.)

#### Hypothesis 10:
- Hypothesis: If calcium is given, then bone strength will increase.
- Question: Does intake of calcium affect bone strength?
- Independent Variable: Calcium intake (This is what is being manipulated.)
- Dependent Variable: Bone strength (This is what is being measured as a result of calcium intake.)

Final Answer:

\[
\boxed{
\begin{array}{l}
\text{6. Question: What is the effect of watering plants on their growth height?} \\
\text{ Independent variable: watering plants} \\
\text{ Dependent variable: growth height} \\
\text{7. Question: Does giving chocolate to teachers decrease the amount of homework?} \\
\text{ Independent variable: giving chocolate to teachers} \\
\text{ Dependent variable: amount of homework} \\
\text{8. Question: Does the presence of leaves on trees affect the number of bird nests?} \\
\text{ Independent variable: leaves on trees} \\
\text{ Dependent variable: number of bird nests} \\
\text{9. Question: Does acid rain in water affect the fish population?} \\
\text{ Independent variable: acid rain in water} \\
\text{ Dependent variable: fish population} \\
\text{10. Question: Does intake of calcium affect bone strength?} \\
\text{ Independent variable: calcium intake} \\
\text{ Dependent variable: bone strength} \\
\end{array}
}
\]